Home / 461,259.12-690,642.60-239,176.56

Finding the Fourth Proportional to 461,259.12, 690,642.60 and 239,176.56

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Solution

The fourth proportional to 461,259.12, 690,642.60 and 239,176.56 is: 358,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,259.12 : 690,642.60 = 239,176.56 : x
  2. Step 2: Convert to fraction form
    461,259.12/690,642.60 = 239,176.56/x
  3. Step 3: Cross multiply
    461,259.12x = 690,642.60 × 239,176.56
  4. Step 4: Simplify right side
    461,259.12x = 165,185,521,257.46
  5. Step 5: Solve for x
    x = 165,185,521,257.46/461,259.12
  6. Step 6: Final answer
    x = 358,118.71

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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.