Home / 347,490.24-520,882.20-136,838.40

Finding the Fourth Proportional to 347,490.24, 520,882.20 and 136,838.40

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Solution

The fourth proportional to 347,490.24, 520,882.20 and 136,838.40 is: 205,118.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,490.24 : 520,882.20 = 136,838.40 : x
  2. Step 2: Convert to fraction form
    347,490.24/520,882.20 = 136,838.40/x
  3. Step 3: Cross multiply
    347,490.24x = 520,882.20 × 136,838.40
  4. Step 4: Simplify right side
    347,490.24x = 71,276,686,836.48
  5. Step 5: Solve for x
    x = 71,276,686,836.48/347,490.24
  6. Step 6: Final answer
    x = 205,118.53

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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.