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Finding the Fourth Proportional to 225,038.08, 310,542.40 and 123,060.80

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Solution

The fourth proportional to 225,038.08, 310,542.40 and 123,060.80 is: 169,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,038.08 : 310,542.40 = 123,060.80 : x
  2. Step 2: Convert to fraction form
    225,038.08/310,542.40 = 123,060.80/x
  3. Step 3: Cross multiply
    225,038.08x = 310,542.40 × 123,060.80
  4. Step 4: Simplify right side
    225,038.08x = 38,215,596,177.92
  5. Step 5: Solve for x
    x = 38,215,596,177.92/225,038.08
  6. Step 6: Final answer
    x = 169,818.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.