Home / 209,281.28-314,119.20-76,290.08

Finding the Fourth Proportional to 209,281.28, 314,119.20 and 76,290.08

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Solution

The fourth proportional to 209,281.28, 314,119.20 and 76,290.08 is: 114,507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,281.28 : 314,119.20 = 76,290.08 : x
  2. Step 2: Convert to fraction form
    209,281.28/314,119.20 = 76,290.08/x
  3. Step 3: Cross multiply
    209,281.28x = 314,119.20 × 76,290.08
  4. Step 4: Simplify right side
    209,281.28x = 23,964,178,897.54
  5. Step 5: Solve for x
    x = 23,964,178,897.54/209,281.28
  6. Step 6: Final answer
    x = 114,507.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.