Home / 221,275.24-305,399.63-130,625.89

Finding the Fourth Proportional to 221,275.24, 305,399.63 and 130,625.89

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Solution

The fourth proportional to 221,275.24, 305,399.63 and 130,625.89 is: 180,287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,275.24 : 305,399.63 = 130,625.89 : x
  2. Step 2: Convert to fraction form
    221,275.24/305,399.63 = 130,625.89/x
  3. Step 3: Cross multiply
    221,275.24x = 305,399.63 × 130,625.89
  4. Step 4: Simplify right side
    221,275.24x = 39,893,098,474.42
  5. Step 5: Solve for x
    x = 39,893,098,474.42/221,275.24
  6. Step 6: Final answer
    x = 180,287.22

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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.