Home / 257,928.15-386,959.32-98,007.15

Finding the Fourth Proportional to 257,928.15, 386,959.32 and 98,007.15

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Solution

The fourth proportional to 257,928.15, 386,959.32 and 98,007.15 is: 147,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,928.15 : 386,959.32 = 98,007.15 : x
  2. Step 2: Convert to fraction form
    257,928.15/386,959.32 = 98,007.15/x
  3. Step 3: Cross multiply
    257,928.15x = 386,959.32 × 98,007.15
  4. Step 4: Simplify right side
    257,928.15x = 37,924,780,119.14
  5. Step 5: Solve for x
    x = 37,924,780,119.14/257,928.15
  6. Step 6: Final answer
    x = 147,036.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.