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Finding the Fourth Proportional to 542,156.68, 748,206.18 and 300,434.20

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Solution

The fourth proportional to 542,156.68, 748,206.18 and 300,434.20 is: 414,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,156.68 : 748,206.18 = 300,434.20 : x
  2. Step 2: Convert to fraction form
    542,156.68/748,206.18 = 300,434.20/x
  3. Step 3: Cross multiply
    542,156.68x = 748,206.18 × 300,434.20
  4. Step 4: Simplify right side
    542,156.68x = 224,786,725,123.36
  5. Step 5: Solve for x
    x = 224,786,725,123.36/542,156.68
  6. Step 6: Final answer
    x = 414,615.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.