Home / 437,638.47-656,456.27-142,150.47

Finding the Fourth Proportional to 437,638.47, 656,456.27 and 142,150.47

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Solution

The fourth proportional to 437,638.47, 656,456.27 and 142,150.47 is: 213,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,638.47 : 656,456.27 = 142,150.47 : x
  2. Step 2: Convert to fraction form
    437,638.47/656,456.27 = 142,150.47/x
  3. Step 3: Cross multiply
    437,638.47x = 656,456.27 × 142,150.47
  4. Step 4: Simplify right side
    437,638.47x = 93,315,566,604.19
  5. Step 5: Solve for x
    x = 93,315,566,604.19/437,638.47
  6. Step 6: Final answer
    x = 213,225.24

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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.