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Finding the Fourth Proportional to 317,633.85, 438,335.57 and 174,403.17

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Solution

The fourth proportional to 317,633.85, 438,335.57 and 174,403.17 is: 240,676.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,633.85 : 438,335.57 = 174,403.17 : x
  2. Step 2: Convert to fraction form
    317,633.85/438,335.57 = 174,403.17/x
  3. Step 3: Cross multiply
    317,633.85x = 438,335.57 × 174,403.17
  4. Step 4: Simplify right side
    317,633.85x = 76,447,112,059.74
  5. Step 5: Solve for x
    x = 76,447,112,059.74/317,633.85
  6. Step 6: Final answer
    x = 240,676.84

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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.