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Finding the Fourth Proportional to 402,130.40, 603,195.60 and 244,407.20

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Solution

The fourth proportional to 402,130.40, 603,195.60 and 244,407.20 is: 366,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,130.40 : 603,195.60 = 244,407.20 : x
  2. Step 2: Convert to fraction form
    402,130.40/603,195.60 = 244,407.20/x
  3. Step 3: Cross multiply
    402,130.40x = 603,195.60 × 244,407.20
  4. Step 4: Simplify right side
    402,130.40x = 147,425,347,648.32
  5. Step 5: Solve for x
    x = 147,425,347,648.32/402,130.40
  6. Step 6: Final answer
    x = 366,610.80

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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.