Home / 459,017.20-688,525.80-143,473.60

Finding the Fourth Proportional to 459,017.20, 688,525.80 and 143,473.60

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Solution

The fourth proportional to 459,017.20, 688,525.80 and 143,473.60 is: 215,210.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,017.20 : 688,525.80 = 143,473.60 : x
  2. Step 2: Convert to fraction form
    459,017.20/688,525.80 = 143,473.60/x
  3. Step 3: Cross multiply
    459,017.20x = 688,525.80 × 143,473.60
  4. Step 4: Simplify right side
    459,017.20x = 98,785,275,218.88
  5. Step 5: Solve for x
    x = 98,785,275,218.88/459,017.20
  6. Step 6: Final answer
    x = 215,210.40

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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.