Home / 415,784.20-623,676.30-149,553.40

Finding the Fourth Proportional to 415,784.20, 623,676.30 and 149,553.40

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Solution

The fourth proportional to 415,784.20, 623,676.30 and 149,553.40 is: 224,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,784.20 : 623,676.30 = 149,553.40 : x
  2. Step 2: Convert to fraction form
    415,784.20/623,676.30 = 149,553.40/x
  3. Step 3: Cross multiply
    415,784.20x = 623,676.30 × 149,553.40
  4. Step 4: Simplify right side
    415,784.20x = 93,272,911,164.42
  5. Step 5: Solve for x
    x = 93,272,911,164.42/415,784.20
  6. Step 6: Final answer
    x = 224,330.10

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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.