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Finding the Fourth Proportional to 486,877.53, 730,321.77 and 149,915.51

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Solution

The fourth proportional to 486,877.53, 730,321.77 and 149,915.51 is: 224,874.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,877.53 : 730,321.77 = 149,915.51 : x
  2. Step 2: Convert to fraction form
    486,877.53/730,321.77 = 149,915.51/x
  3. Step 3: Cross multiply
    486,877.53x = 730,321.77 × 149,915.51
  4. Step 4: Simplify right side
    486,877.53x = 109,486,559,419.66
  5. Step 5: Solve for x
    x = 109,486,559,419.66/486,877.53
  6. Step 6: Final answer
    x = 224,874.95

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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.