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Finding the Fourth Proportional to 292,725, 439,088.58 and 71,109

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Solution

The fourth proportional to 292,725, 439,088.58 and 71,109 is: 106,663.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,725 : 439,088.58 = 71,109 : x
  2. Step 2: Convert to fraction form
    292,725/439,088.58 = 71,109/x
  3. Step 3: Cross multiply
    292,725x = 439,088.58 × 71,109
  4. Step 4: Simplify right side
    292,725x = 31,223,149,835.22
  5. Step 5: Solve for x
    x = 31,223,149,835.22/292,725
  6. Step 6: Final answer
    x = 106,663.76

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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.