Home / 508,742.30-763,113.45-153,811.10

Finding the Fourth Proportional to 508,742.30, 763,113.45 and 153,811.10

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Solution

The fourth proportional to 508,742.30, 763,113.45 and 153,811.10 is: 230,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,742.30 : 763,113.45 = 153,811.10 : x
  2. Step 2: Convert to fraction form
    508,742.30/763,113.45 = 153,811.10/x
  3. Step 3: Cross multiply
    508,742.30x = 763,113.45 × 153,811.10
  4. Step 4: Simplify right side
    508,742.30x = 117,375,319,169.30
  5. Step 5: Solve for x
    x = 117,375,319,169.30/508,742.30
  6. Step 6: Final answer
    x = 230,716.65

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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.