Home / 347,269.20-520,801.40-136,837.20

Finding the Fourth Proportional to 347,269.20, 520,801.40 and 136,837.20

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Solution

The fourth proportional to 347,269.20, 520,801.40 and 136,837.20 is: 205,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,269.20 : 520,801.40 = 136,837.20 : x
  2. Step 2: Convert to fraction form
    347,269.20/520,801.40 = 136,837.20/x
  3. Step 3: Cross multiply
    347,269.20x = 520,801.40 × 136,837.20
  4. Step 4: Simplify right side
    347,269.20x = 71,265,005,332.08
  5. Step 5: Solve for x
    x = 71,265,005,332.08/347,269.20
  6. Step 6: Final answer
    x = 205,215.45

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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.