Home / 231,461.76-319,417.28-130,858.88

Finding the Fourth Proportional to 231,461.76, 319,417.28 and 130,858.88

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Solution

The fourth proportional to 231,461.76, 319,417.28 and 130,858.88 is: 180,585.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,461.76 : 319,417.28 = 130,858.88 : x
  2. Step 2: Convert to fraction form
    231,461.76/319,417.28 = 130,858.88/x
  3. Step 3: Cross multiply
    231,461.76x = 319,417.28 × 130,858.88
  4. Step 4: Simplify right side
    231,461.76x = 41,798,587,513.45
  5. Step 5: Solve for x
    x = 41,798,587,513.45/231,461.76
  6. Step 6: Final answer
    x = 180,585.28

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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.