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Finding the Fourth Proportional to 318,006.72, 438,844.23 and 174,763.71

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Solution

The fourth proportional to 318,006.72, 438,844.23 and 174,763.71 is: 241,171.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,006.72 : 438,844.23 = 174,763.71 : x
  2. Step 2: Convert to fraction form
    318,006.72/438,844.23 = 174,763.71/x
  3. Step 3: Cross multiply
    318,006.72x = 438,844.23 × 174,763.71
  4. Step 4: Simplify right side
    318,006.72x = 76,694,045,746.89
  5. Step 5: Solve for x
    x = 76,694,045,746.89/318,006.72
  6. Step 6: Final answer
    x = 241,171.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.