Home / 508,738.20-763,215.24-193,188.12

Finding the Fourth Proportional to 508,738.20, 763,215.24 and 193,188.12

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Solution

The fourth proportional to 508,738.20, 763,215.24 and 193,188.12 is: 289,823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,738.20 : 763,215.24 = 193,188.12 : x
  2. Step 2: Convert to fraction form
    508,738.20/763,215.24 = 193,188.12/x
  3. Step 3: Cross multiply
    508,738.20x = 763,215.24 × 193,188.12
  4. Step 4: Simplify right side
    508,738.20x = 147,444,117,370.95
  5. Step 5: Solve for x
    x = 147,444,117,370.95/508,738.20
  6. Step 6: Final answer
    x = 289,823.17

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.