Home / 457,132.50-685,566.36-137,271.45

Finding the Fourth Proportional to 457,132.50, 685,566.36 and 137,271.45

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Solution

The fourth proportional to 457,132.50, 685,566.36 and 137,271.45 is: 205,867.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,132.50 : 685,566.36 = 137,271.45 : x
  2. Step 2: Convert to fraction form
    457,132.50/685,566.36 = 137,271.45/x
  3. Step 3: Cross multiply
    457,132.50x = 685,566.36 × 137,271.45
  4. Step 4: Simplify right side
    457,132.50x = 94,108,688,308.42
  5. Step 5: Solve for x
    x = 94,108,688,308.42/457,132.50
  6. Step 6: Final answer
    x = 205,867.42

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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.