Home / 282,545.28-423,423.84-212,342.40

Finding the Fourth Proportional to 282,545.28, 423,423.84 and 212,342.40

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Solution

The fourth proportional to 282,545.28, 423,423.84 and 212,342.40 is: 318,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,545.28 : 423,423.84 = 212,342.40 : x
  2. Step 2: Convert to fraction form
    282,545.28/423,423.84 = 212,342.40/x
  3. Step 3: Cross multiply
    282,545.28x = 423,423.84 × 212,342.40
  4. Step 4: Simplify right side
    282,545.28x = 89,910,834,402.82
  5. Step 5: Solve for x
    x = 89,910,834,402.82/282,545.28
  6. Step 6: Final answer
    x = 318,217.44

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1.5x scale

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.