Home / 245,656.27-338,881.45-143,615.20

Finding the Fourth Proportional to 245,656.27, 338,881.45 and 143,615.20

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Solution

The fourth proportional to 245,656.27, 338,881.45 and 143,615.20 is: 198,116.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,656.27 : 338,881.45 = 143,615.20 : x
  2. Step 2: Convert to fraction form
    245,656.27/338,881.45 = 143,615.20/x
  3. Step 3: Cross multiply
    245,656.27x = 338,881.45 × 143,615.20
  4. Step 4: Simplify right side
    245,656.27x = 48,668,527,218.04
  5. Step 5: Solve for x
    x = 48,668,527,218.04/245,656.27
  6. Step 6: Final answer
    x = 198,116.36

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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.