Home / 221,025.47-304,882.20-134,945.15

Finding the Fourth Proportional to 221,025.47, 304,882.20 and 134,945.15

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Solution

The fourth proportional to 221,025.47, 304,882.20 and 134,945.15 is: 186,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,025.47 : 304,882.20 = 134,945.15 : x
  2. Step 2: Convert to fraction form
    221,025.47/304,882.20 = 134,945.15/x
  3. Step 3: Cross multiply
    221,025.47x = 304,882.20 × 134,945.15
  4. Step 4: Simplify right side
    221,025.47x = 41,142,372,686.92
  5. Step 5: Solve for x
    x = 41,142,372,686.92/221,025.47
  6. Step 6: Final answer
    x = 186,143.13

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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.