Home / 402,947.07-603,658.65-238,137.69

Finding the Fourth Proportional to 402,947.07, 603,658.65 and 238,137.69

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Solution

The fourth proportional to 402,947.07, 603,658.65 and 238,137.69 is: 356,756.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,947.07 : 603,658.65 = 238,137.69 : x
  2. Step 2: Convert to fraction form
    402,947.07/603,658.65 = 238,137.69/x
  3. Step 3: Cross multiply
    402,947.07x = 603,658.65 × 238,137.69
  4. Step 4: Simplify right side
    402,947.07x = 143,753,876,459.52
  5. Step 5: Solve for x
    x = 143,753,876,459.52/402,947.07
  6. Step 6: Final answer
    x = 356,756.23

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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.