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Finding the Fourth Proportional to 317,417.32, 438,034.70 and 174,179.76

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Solution

The fourth proportional to 317,417.32, 438,034.70 and 174,179.76 is: 240,367.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,417.32 : 438,034.70 = 174,179.76 : x
  2. Step 2: Convert to fraction form
    317,417.32/438,034.70 = 174,179.76/x
  3. Step 3: Cross multiply
    317,417.32x = 438,034.70 × 174,179.76
  4. Step 4: Simplify right side
    317,417.32x = 76,296,778,917.67
  5. Step 5: Solve for x
    x = 76,296,778,917.67/317,417.32
  6. Step 6: Final answer
    x = 240,367.41

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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.