Home / 221,024.20-331,709.10-102,710.20

Finding the Fourth Proportional to 221,024.20, 331,709.10 and 102,710.20

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Solution

The fourth proportional to 221,024.20, 331,709.10 and 102,710.20 is: 154,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,024.20 : 331,709.10 = 102,710.20 : x
  2. Step 2: Convert to fraction form
    221,024.20/331,709.10 = 102,710.20/x
  3. Step 3: Cross multiply
    221,024.20x = 331,709.10 × 102,710.20
  4. Step 4: Simplify right side
    221,024.20x = 34,069,908,002.82
  5. Step 5: Solve for x
    x = 34,069,908,002.82/221,024.20
  6. Step 6: Final answer
    x = 154,145.60

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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.