Home / 459,009.60-688,514.40-210,177.60

Finding the Fourth Proportional to 459,009.60, 688,514.40 and 210,177.60

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Solution

The fourth proportional to 459,009.60, 688,514.40 and 210,177.60 is: 315,266.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,009.60 : 688,514.40 = 210,177.60 : x
  2. Step 2: Convert to fraction form
    459,009.60/688,514.40 = 210,177.60/x
  3. Step 3: Cross multiply
    459,009.60x = 688,514.40 × 210,177.60
  4. Step 4: Simplify right side
    459,009.60x = 144,710,304,157.44
  5. Step 5: Solve for x
    x = 144,710,304,157.44/459,009.60
  6. Step 6: Final answer
    x = 315,266.40

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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.