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Finding the Fourth Proportional to 508,918, 763,377.04 and 158,710

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Solution

The fourth proportional to 508,918, 763,377.04 and 158,710 is: 238,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,918 : 763,377.04 = 158,710 : x
  2. Step 2: Convert to fraction form
    508,918/763,377.04 = 158,710/x
  3. Step 3: Cross multiply
    508,918x = 763,377.04 × 158,710
  4. Step 4: Simplify right side
    508,918x = 121,155,570,018.40
  5. Step 5: Solve for x
    x = 121,155,570,018.40/508,918
  6. Step 6: Final answer
    x = 238,065.01

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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.