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Finding the Fourth Proportional to 379,593.88, 569,391.03 and 99,111.13

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Solution

The fourth proportional to 379,593.88, 569,391.03 and 99,111.13 is: 148,666.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,593.88 : 569,391.03 = 99,111.13 : x
  2. Step 2: Convert to fraction form
    379,593.88/569,391.03 = 99,111.13/x
  3. Step 3: Cross multiply
    379,593.88x = 569,391.03 × 99,111.13
  4. Step 4: Simplify right side
    379,593.88x = 56,432,988,395.16
  5. Step 5: Solve for x
    x = 56,432,988,395.16/379,593.88
  6. Step 6: Final answer
    x = 148,666.75

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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.