Home / 289,934.10-434,901.15-270,251.10

Finding the Fourth Proportional to 289,934.10, 434,901.15 and 270,251.10

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Solution

The fourth proportional to 289,934.10, 434,901.15 and 270,251.10 is: 405,376.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,934.10 : 434,901.15 = 270,251.10 : x
  2. Step 2: Convert to fraction form
    289,934.10/434,901.15 = 270,251.10/x
  3. Step 3: Cross multiply
    289,934.10x = 434,901.15 × 270,251.10
  4. Step 4: Simplify right side
    289,934.10x = 117,532,514,178.77
  5. Step 5: Solve for x
    x = 117,532,514,178.77/289,934.10
  6. Step 6: Final answer
    x = 405,376.65

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Similar ratio
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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.