Home / 317,432.21-438,055.16-174,194.64

Finding the Fourth Proportional to 317,432.21, 438,055.16 and 174,194.64

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Solution

The fourth proportional to 317,432.21, 438,055.16 and 174,194.64 is: 240,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,432.21 : 438,055.16 = 174,194.64 : x
  2. Step 2: Convert to fraction form
    317,432.21/438,055.16 = 174,194.64/x
  3. Step 3: Cross multiply
    317,432.21x = 438,055.16 × 174,194.64
  4. Step 4: Simplify right side
    317,432.21x = 76,306,860,025.37
  5. Step 5: Solve for x
    x = 76,306,860,025.37/317,432.21
  6. Step 6: Final answer
    x = 240,387.90

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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.