Home / 317,540.64-438,204.42-174,303.12

Finding the Fourth Proportional to 317,540.64, 438,204.42 and 174,303.12

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Solution

The fourth proportional to 317,540.64, 438,204.42 and 174,303.12 is: 240,537.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,540.64 : 438,204.42 = 174,303.12 : x
  2. Step 2: Convert to fraction form
    317,540.64/438,204.42 = 174,303.12/x
  3. Step 3: Cross multiply
    317,540.64x = 438,204.42 × 174,303.12
  4. Step 4: Simplify right side
    317,540.64x = 76,380,397,603.79
  5. Step 5: Solve for x
    x = 76,380,397,603.79/317,540.64
  6. Step 6: Final answer
    x = 240,537.39

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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.