Home / 317,649.12-438,362.85-174,409.73

Finding the Fourth Proportional to 317,649.12, 438,362.85 and 174,409.73

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Solution

The fourth proportional to 317,649.12, 438,362.85 and 174,409.73 is: 240,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,649.12 : 438,362.85 = 174,409.73 : x
  2. Step 2: Convert to fraction form
    317,649.12/438,362.85 = 174,409.73/x
  3. Step 3: Cross multiply
    317,649.12x = 438,362.85 × 174,409.73
  4. Step 4: Simplify right side
    317,649.12x = 76,454,746,310.53
  5. Step 5: Solve for x
    x = 76,454,746,310.53/317,649.12
  6. Step 6: Final answer
    x = 240,689.31

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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.