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Finding the Fourth Proportional to 381,828.33, 572,522.99 and 157,343.72

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Solution

The fourth proportional to 381,828.33, 572,522.99 and 157,343.72 is: 235,925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,828.33 : 572,522.99 = 157,343.72 : x
  2. Step 2: Convert to fraction form
    381,828.33/572,522.99 = 157,343.72/x
  3. Step 3: Cross multiply
    381,828.33x = 572,522.99 × 157,343.72
  4. Step 4: Simplify right side
    381,828.33x = 90,082,893,382.79
  5. Step 5: Solve for x
    x = 90,082,893,382.79/381,828.33
  6. Step 6: Final answer
    x = 235,925.12

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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.