Home / 374,915.72-562,593.38-138,423.28

Finding the Fourth Proportional to 374,915.72, 562,593.38 and 138,423.28

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Solution

The fourth proportional to 374,915.72, 562,593.38 and 138,423.28 is: 207,716.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,915.72 : 562,593.38 = 138,423.28 : x
  2. Step 2: Convert to fraction form
    374,915.72/562,593.38 = 138,423.28/x
  3. Step 3: Cross multiply
    374,915.72x = 562,593.38 × 138,423.28
  4. Step 4: Simplify right side
    374,915.72x = 77,876,020,965.89
  5. Step 5: Solve for x
    x = 77,876,020,965.89/374,915.72
  6. Step 6: Final answer
    x = 207,716.07

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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.