Home / 415,931.20-623,589.60-166,484.80

Finding the Fourth Proportional to 415,931.20, 623,589.60 and 166,484.80

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Solution

The fourth proportional to 415,931.20, 623,589.60 and 166,484.80 is: 249,604.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,931.20 : 623,589.60 = 166,484.80 : x
  2. Step 2: Convert to fraction form
    415,931.20/623,589.60 = 166,484.80/x
  3. Step 3: Cross multiply
    415,931.20x = 623,589.60 × 166,484.80
  4. Step 4: Simplify right side
    415,931.20x = 103,818,189,838.08
  5. Step 5: Solve for x
    x = 103,818,189,838.08/415,931.20
  6. Step 6: Final answer
    x = 249,604.24

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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.