Home / 261,818.30-393,318.64-155,272.14

Finding the Fourth Proportional to 261,818.30, 393,318.64 and 155,272.14

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Solution

The fourth proportional to 261,818.30, 393,318.64 and 155,272.14 is: 233,258.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,818.30 : 393,318.64 = 155,272.14 : x
  2. Step 2: Convert to fraction form
    261,818.30/393,318.64 = 155,272.14/x
  3. Step 3: Cross multiply
    261,818.30x = 393,318.64 × 155,272.14
  4. Step 4: Simplify right side
    261,818.30x = 61,071,426,934.69
  5. Step 5: Solve for x
    x = 61,071,426,934.69/261,818.30
  6. Step 6: Final answer
    x = 233,258.82

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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.