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Finding the Fourth Proportional to 361,471.40, 542,207.10 and 344,364.20

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Solution

The fourth proportional to 361,471.40, 542,207.10 and 344,364.20 is: 516,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,471.40 : 542,207.10 = 344,364.20 : x
  2. Step 2: Convert to fraction form
    361,471.40/542,207.10 = 344,364.20/x
  3. Step 3: Cross multiply
    361,471.40x = 542,207.10 × 344,364.20
  4. Step 4: Simplify right side
    361,471.40x = 186,716,714,225.82
  5. Step 5: Solve for x
    x = 186,716,714,225.82/361,471.40
  6. Step 6: Final answer
    x = 516,546.30

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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.