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Finding the Fourth Proportional to 257,248.99, 354,939.48 and 148,386.61

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Solution

The fourth proportional to 257,248.99, 354,939.48 and 148,386.61 is: 204,736.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,248.99 : 354,939.48 = 148,386.61 : x
  2. Step 2: Convert to fraction form
    257,248.99/354,939.48 = 148,386.61/x
  3. Step 3: Cross multiply
    257,248.99x = 354,939.48 × 148,386.61
  4. Step 4: Simplify right side
    257,248.99x = 52,668,266,192.36
  5. Step 5: Solve for x
    x = 52,668,266,192.36/257,248.99
  6. Step 6: Final answer
    x = 204,736.53

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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.