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Finding the Fourth Proportional to 292,470.66, 438,650.64 and 142,560.36

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Solution

The fourth proportional to 292,470.66, 438,650.64 and 142,560.36 is: 213,813.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,470.66 : 438,650.64 = 142,560.36 : x
  2. Step 2: Convert to fraction form
    292,470.66/438,650.64 = 142,560.36/x
  3. Step 3: Cross multiply
    292,470.66x = 438,650.64 × 142,560.36
  4. Step 4: Simplify right side
    292,470.66x = 62,534,193,152.63
  5. Step 5: Solve for x
    x = 62,534,193,152.63/292,470.66
  6. Step 6: Final answer
    x = 213,813.56

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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.