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Finding the Fourth Proportional to 371,073.97, 512,130.38 and 207,792.66

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Solution

The fourth proportional to 371,073.97, 512,130.38 and 207,792.66 is: 286,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,073.97 : 512,130.38 = 207,792.66 : x
  2. Step 2: Convert to fraction form
    371,073.97/512,130.38 = 207,792.66/x
  3. Step 3: Cross multiply
    371,073.97x = 512,130.38 × 207,792.66
  4. Step 4: Simplify right side
    371,073.97x = 106,416,930,327.40
  5. Step 5: Solve for x
    x = 106,416,930,327.40/371,073.97
  6. Step 6: Final answer
    x = 286,780.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.