Home / 317,445.90-438,091.29-174,204.78

Finding the Fourth Proportional to 317,445.90, 438,091.29 and 174,204.78

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Solution

The fourth proportional to 317,445.90, 438,091.29 and 174,204.78 is: 240,411.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,445.90 : 438,091.29 = 174,204.78 : x
  2. Step 2: Convert to fraction form
    317,445.90/438,091.29 = 174,204.78/x
  3. Step 3: Cross multiply
    317,445.90x = 438,091.29 × 174,204.78
  4. Step 4: Simplify right side
    317,445.90x = 76,317,596,794.37
  5. Step 5: Solve for x
    x = 76,317,596,794.37/317,445.90
  6. Step 6: Final answer
    x = 240,411.35

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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.