Home / 415,869.20-623,496.60-166,422.80

Finding the Fourth Proportional to 415,869.20, 623,496.60 and 166,422.80

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Solution

The fourth proportional to 415,869.20, 623,496.60 and 166,422.80 is: 249,511.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,869.20 : 623,496.60 = 166,422.80 : x
  2. Step 2: Convert to fraction form
    415,869.20/623,496.60 = 166,422.80/x
  3. Step 3: Cross multiply
    415,869.20x = 623,496.60 × 166,422.80
  4. Step 4: Simplify right side
    415,869.20x = 103,764,049,962.48
  5. Step 5: Solve for x
    x = 103,764,049,962.48/415,869.20
  6. Step 6: Final answer
    x = 249,511.26

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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.