Home / 209,164.28-288,657.78-118,537.88

Finding the Fourth Proportional to 209,164.28, 288,657.78 and 118,537.88

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Solution

The fourth proportional to 209,164.28, 288,657.78 and 118,537.88 is: 163,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,164.28 : 288,657.78 = 118,537.88 : x
  2. Step 2: Convert to fraction form
    209,164.28/288,657.78 = 118,537.88/x
  3. Step 3: Cross multiply
    209,164.28x = 288,657.78 × 118,537.88
  4. Step 4: Simplify right side
    209,164.28x = 34,216,881,286.71
  5. Step 5: Solve for x
    x = 34,216,881,286.71/209,164.28
  6. Step 6: Final answer
    x = 163,588.55

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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.