Home / 209,343.82-288,888.28-118,708.06

Finding the Fourth Proportional to 209,343.82, 288,888.28 and 118,708.06

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Solution

The fourth proportional to 209,343.82, 288,888.28 and 118,708.06 is: 163,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,343.82 : 288,888.28 = 118,708.06 : x
  2. Step 2: Convert to fraction form
    209,343.82/288,888.28 = 118,708.06/x
  3. Step 3: Cross multiply
    209,343.82x = 288,888.28 × 118,708.06
  4. Step 4: Simplify right side
    209,343.82x = 34,293,367,275.54
  5. Step 5: Solve for x
    x = 34,293,367,275.54/209,343.82
  6. Step 6: Final answer
    x = 163,813.61

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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.