Home / 209,162.28-288,655.02-118,535.88

Finding the Fourth Proportional to 209,162.28, 288,655.02 and 118,535.88

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Solution

The fourth proportional to 209,162.28, 288,655.02 and 118,535.88 is: 163,585.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,162.28 : 288,655.02 = 118,535.88 : x
  2. Step 2: Convert to fraction form
    209,162.28/288,655.02 = 118,535.88/x
  3. Step 3: Cross multiply
    209,162.28x = 288,655.02 × 118,535.88
  4. Step 4: Simplify right side
    209,162.28x = 34,215,976,812.12
  5. Step 5: Solve for x
    x = 34,215,976,812.12/209,162.28
  6. Step 6: Final answer
    x = 163,585.79

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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.