Home / 459,088.20-688,632.30-143,544.60

Finding the Fourth Proportional to 459,088.20, 688,632.30 and 143,544.60

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Solution

The fourth proportional to 459,088.20, 688,632.30 and 143,544.60 is: 215,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,088.20 : 688,632.30 = 143,544.60 : x
  2. Step 2: Convert to fraction form
    459,088.20/688,632.30 = 143,544.60/x
  3. Step 3: Cross multiply
    459,088.20x = 688,632.30 × 143,544.60
  4. Step 4: Simplify right side
    459,088.20x = 98,849,448,050.58
  5. Step 5: Solve for x
    x = 98,849,448,050.58/459,088.20
  6. Step 6: Final answer
    x = 215,316.90

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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.