Home / 459,434.04-689,151.08-143,915.52

Finding the Fourth Proportional to 459,434.04, 689,151.08 and 143,915.52

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Solution

The fourth proportional to 459,434.04, 689,151.08 and 143,915.52 is: 215,873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,434.04 : 689,151.08 = 143,915.52 : x
  2. Step 2: Convert to fraction form
    459,434.04/689,151.08 = 143,915.52/x
  3. Step 3: Cross multiply
    459,434.04x = 689,151.08 × 143,915.52
  4. Step 4: Simplify right side
    459,434.04x = 99,179,536,036.76
  5. Step 5: Solve for x
    x = 99,179,536,036.76/459,434.04
  6. Step 6: Final answer
    x = 215,873.29

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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.