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Finding the Fourth Proportional to 152,031.78, 228,061.04 and 39,711.11

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Solution

The fourth proportional to 152,031.78, 228,061.04 and 39,711.11 is: 59,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,031.78 : 228,061.04 = 39,711.11 : x
  2. Step 2: Convert to fraction form
    152,031.78/228,061.04 = 39,711.11/x
  3. Step 3: Cross multiply
    152,031.78x = 228,061.04 × 39,711.11
  4. Step 4: Simplify right side
    152,031.78x = 9,056,555,707.29
  5. Step 5: Solve for x
    x = 9,056,555,707.29/152,031.78
  6. Step 6: Final answer
    x = 59,570.15

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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.