Home / 221,031.16-331,546.44-102,637.76

Finding the Fourth Proportional to 221,031.16, 331,546.44 and 102,637.76

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Solution

The fourth proportional to 221,031.16, 331,546.44 and 102,637.76 is: 153,956.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,031.16 : 331,546.44 = 102,637.76 : x
  2. Step 2: Convert to fraction form
    221,031.16/331,546.44 = 102,637.76/x
  3. Step 3: Cross multiply
    221,031.16x = 331,546.44 × 102,637.76
  4. Step 4: Simplify right side
    221,031.16x = 34,029,183,937.57
  5. Step 5: Solve for x
    x = 34,029,183,937.57/221,031.16
  6. Step 6: Final answer
    x = 153,956.50

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1.5x scale

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.