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Finding the Fourth Proportional to 292,395.92, 438,134.61 and 225,998.60

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Solution

The fourth proportional to 292,395.92, 438,134.61 and 225,998.60 is: 338,642.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,395.92 : 438,134.61 = 225,998.60 : x
  2. Step 2: Convert to fraction form
    292,395.92/438,134.61 = 225,998.60/x
  3. Step 3: Cross multiply
    292,395.92x = 438,134.61 × 225,998.60
  4. Step 4: Simplify right side
    292,395.92x = 99,017,808,471.55
  5. Step 5: Solve for x
    x = 99,017,808,471.55/292,395.92
  6. Step 6: Final answer
    x = 338,642.92

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1.5x scale

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.