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Finding the Fourth Proportional to 347,436, 520,920.72 and 160,345.44

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Solution

The fourth proportional to 347,436, 520,920.72 and 160,345.44 is: 240,410.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,436 : 520,920.72 = 160,345.44 : x
  2. Step 2: Convert to fraction form
    347,436/520,920.72 = 160,345.44/x
  3. Step 3: Cross multiply
    347,436x = 520,920.72 × 160,345.44
  4. Step 4: Simplify right side
    347,436x = 83,527,262,053.52
  5. Step 5: Solve for x
    x = 83,527,262,053.52/347,436
  6. Step 6: Final answer
    x = 240,410.50

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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.