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Finding the Fourth Proportional to 346,766.40, 520,279.20 and 136,550.88

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Solution

The fourth proportional to 346,766.40, 520,279.20 and 136,550.88 is: 204,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,766.40 : 520,279.20 = 136,550.88 : x
  2. Step 2: Convert to fraction form
    346,766.40/520,279.20 = 136,550.88/x
  3. Step 3: Cross multiply
    346,766.40x = 520,279.20 × 136,550.88
  4. Step 4: Simplify right side
    346,766.40x = 71,044,582,605.70
  5. Step 5: Solve for x
    x = 71,044,582,605.70/346,766.40
  6. Step 6: Final answer
    x = 204,877.35

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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.