Home / 457,322.80-685,984.20-141,811.60

Finding the Fourth Proportional to 457,322.80, 685,984.20 and 141,811.60

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Solution

The fourth proportional to 457,322.80, 685,984.20 and 141,811.60 is: 212,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,322.80 : 685,984.20 = 141,811.60 : x
  2. Step 2: Convert to fraction form
    457,322.80/685,984.20 = 141,811.60/x
  3. Step 3: Cross multiply
    457,322.80x = 685,984.20 × 141,811.60
  4. Step 4: Simplify right side
    457,322.80x = 97,280,516,976.72
  5. Step 5: Solve for x
    x = 97,280,516,976.72/457,322.80
  6. Step 6: Final answer
    x = 212,717.40

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Similar ratio
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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.