Home / 459,743.20-689,614.80-144,199.60

Finding the Fourth Proportional to 459,743.20, 689,614.80 and 144,199.60

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Solution

The fourth proportional to 459,743.20, 689,614.80 and 144,199.60 is: 216,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,743.20 : 689,614.80 = 144,199.60 : x
  2. Step 2: Convert to fraction form
    459,743.20/689,614.80 = 144,199.60/x
  3. Step 3: Cross multiply
    459,743.20x = 689,614.80 × 144,199.60
  4. Step 4: Simplify right side
    459,743.20x = 99,442,178,314.08
  5. Step 5: Solve for x
    x = 99,442,178,314.08/459,743.20
  6. Step 6: Final answer
    x = 216,299.40

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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.