Home / 316,975.28-437,422.20-171,778.16

Finding the Fourth Proportional to 316,975.28, 437,422.20 and 171,778.16

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Solution

The fourth proportional to 316,975.28, 437,422.20 and 171,778.16 is: 237,051.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,975.28 : 437,422.20 = 171,778.16 : x
  2. Step 2: Convert to fraction form
    316,975.28/437,422.20 = 171,778.16/x
  3. Step 3: Cross multiply
    316,975.28x = 437,422.20 × 171,778.16
  4. Step 4: Simplify right side
    316,975.28x = 75,139,580,659.15
  5. Step 5: Solve for x
    x = 75,139,580,659.15/316,975.28
  6. Step 6: Final answer
    x = 237,051.86

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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.