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Finding the Fourth Proportional to 347,353.20, 520,252.20 and 207,385.20

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Solution

The fourth proportional to 347,353.20, 520,252.20 and 207,385.20 is: 310,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,353.20 : 520,252.20 = 207,385.20 : x
  2. Step 2: Convert to fraction form
    347,353.20/520,252.20 = 207,385.20/x
  3. Step 3: Cross multiply
    347,353.20x = 520,252.20 × 207,385.20
  4. Step 4: Simplify right side
    347,353.20x = 107,892,606,547.44
  5. Step 5: Solve for x
    x = 107,892,606,547.44/347,353.20
  6. Step 6: Final answer
    x = 310,613.54

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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.