Home / 274,275.54-378,498.60-153,430.02

Finding the Fourth Proportional to 274,275.54, 378,498.60 and 153,430.02

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Solution

The fourth proportional to 274,275.54, 378,498.60 and 153,430.02 is: 211,732.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,275.54 : 378,498.60 = 153,430.02 : x
  2. Step 2: Convert to fraction form
    274,275.54/378,498.60 = 153,430.02/x
  3. Step 3: Cross multiply
    274,275.54x = 378,498.60 × 153,430.02
  4. Step 4: Simplify right side
    274,275.54x = 58,073,047,767.97
  5. Step 5: Solve for x
    x = 58,073,047,767.97/274,275.54
  6. Step 6: Final answer
    x = 211,732.51

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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.