Home / 186,302.06-278,594.69-138,361.20

Finding the Fourth Proportional to 186,302.06, 278,594.69 and 138,361.20

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Solution

The fourth proportional to 186,302.06, 278,594.69 and 138,361.20 is: 206,904.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,302.06 : 278,594.69 = 138,361.20 : x
  2. Step 2: Convert to fraction form
    186,302.06/278,594.69 = 138,361.20/x
  3. Step 3: Cross multiply
    186,302.06x = 278,594.69 × 138,361.20
  4. Step 4: Simplify right side
    186,302.06x = 38,546,695,622.03
  5. Step 5: Solve for x
    x = 38,546,695,622.03/186,302.06
  6. Step 6: Final answer
    x = 206,904.29

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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.