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Finding the Fourth Proportional to 317,602.31, 438,291.92 and 174,371.58

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Solution

The fourth proportional to 317,602.31, 438,291.92 and 174,371.58 is: 240,633.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,602.31 : 438,291.92 = 174,371.58 : x
  2. Step 2: Convert to fraction form
    317,602.31/438,291.92 = 174,371.58/x
  3. Step 3: Cross multiply
    317,602.31x = 438,291.92 × 174,371.58
  4. Step 4: Simplify right side
    317,602.31x = 76,425,652,568.82
  5. Step 5: Solve for x
    x = 76,425,652,568.82/317,602.31
  6. Step 6: Final answer
    x = 240,633.18

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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.