Home / 209,215.53-288,708.12-118,566.18

Finding the Fourth Proportional to 209,215.53, 288,708.12 and 118,566.18

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Solution

The fourth proportional to 209,215.53, 288,708.12 and 118,566.18 is: 163,616.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,215.53 : 288,708.12 = 118,566.18 : x
  2. Step 2: Convert to fraction form
    209,215.53/288,708.12 = 118,566.18/x
  3. Step 3: Cross multiply
    209,215.53x = 288,708.12 × 118,566.18
  4. Step 4: Simplify right side
    209,215.53x = 34,231,018,923.38
  5. Step 5: Solve for x
    x = 34,231,018,923.38/209,215.53
  6. Step 6: Final answer
    x = 163,616.05

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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.