Home / 221,031.12-304,942.86-144,593.76

Finding the Fourth Proportional to 221,031.12, 304,942.86 and 144,593.76

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Solution

The fourth proportional to 221,031.12, 304,942.86 and 144,593.76 is: 199,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,031.12 : 304,942.86 = 144,593.76 : x
  2. Step 2: Convert to fraction form
    221,031.12/304,942.86 = 144,593.76/x
  3. Step 3: Cross multiply
    221,031.12x = 304,942.86 × 144,593.76
  4. Step 4: Simplify right side
    221,031.12x = 44,092,834,712.55
  5. Step 5: Solve for x
    x = 44,092,834,712.55/221,031.12
  6. Step 6: Final answer
    x = 199,487.00

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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.