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Finding the Fourth Proportional to 280,472.20, 420,710.70 and 93,483.70

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Solution

The fourth proportional to 280,472.20, 420,710.70 and 93,483.70 is: 140,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,472.20 : 420,710.70 = 93,483.70 : x
  2. Step 2: Convert to fraction form
    280,472.20/420,710.70 = 93,483.70/x
  3. Step 3: Cross multiply
    280,472.20x = 420,710.70 × 93,483.70
  4. Step 4: Simplify right side
    280,472.20x = 39,329,592,865.59
  5. Step 5: Solve for x
    x = 39,329,592,865.59/280,472.20
  6. Step 6: Final answer
    x = 140,226.35

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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.