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Finding the Fourth Proportional to 362,126.20, 542,606.10 and 302,639.80

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Solution

The fourth proportional to 362,126.20, 542,606.10 and 302,639.80 is: 453,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,126.20 : 542,606.10 = 302,639.80 : x
  2. Step 2: Convert to fraction form
    362,126.20/542,606.10 = 302,639.80/x
  3. Step 3: Cross multiply
    362,126.20x = 542,606.10 × 302,639.80
  4. Step 4: Simplify right side
    362,126.20x = 164,214,201,582.78
  5. Step 5: Solve for x
    x = 164,214,201,582.78/362,126.20
  6. Step 6: Final answer
    x = 453,472.30

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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.