Home / 231,465.28-319,316.16-135,970.24

Finding the Fourth Proportional to 231,465.28, 319,316.16 and 135,970.24

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Solution

The fourth proportional to 231,465.28, 319,316.16 and 135,970.24 is: 187,576.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,465.28 : 319,316.16 = 135,970.24 : x
  2. Step 2: Convert to fraction form
    231,465.28/319,316.16 = 135,970.24/x
  3. Step 3: Cross multiply
    231,465.28x = 319,316.16 × 135,970.24
  4. Step 4: Simplify right side
    231,465.28x = 43,417,494,911.08
  5. Step 5: Solve for x
    x = 43,417,494,911.08/231,465.28
  6. Step 6: Final answer
    x = 187,576.71

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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.