Home / 442,938.10-664,407.15-176,739.70

Finding the Fourth Proportional to 442,938.10, 664,407.15 and 176,739.70

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Solution

The fourth proportional to 442,938.10, 664,407.15 and 176,739.70 is: 265,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,938.10 : 664,407.15 = 176,739.70 : x
  2. Step 2: Convert to fraction form
    442,938.10/664,407.15 = 176,739.70/x
  3. Step 3: Cross multiply
    442,938.10x = 664,407.15 × 176,739.70
  4. Step 4: Simplify right side
    442,938.10x = 117,427,120,368.86
  5. Step 5: Solve for x
    x = 117,427,120,368.86/442,938.10
  6. Step 6: Final answer
    x = 265,109.55

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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.