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Finding the Fourth Proportional to 261,111.40, 392,502.30 and 242,621.80

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Solution

The fourth proportional to 261,111.40, 392,502.30 and 242,621.80 is: 364,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,111.40 : 392,502.30 = 242,621.80 : x
  2. Step 2: Convert to fraction form
    261,111.40/392,502.30 = 242,621.80/x
  3. Step 3: Cross multiply
    261,111.40x = 392,502.30 × 242,621.80
  4. Step 4: Simplify right side
    261,111.40x = 95,229,614,530.14
  5. Step 5: Solve for x
    x = 95,229,614,530.14/261,111.40
  6. Step 6: Final answer
    x = 364,708.76

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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.