Home / 221,033.16-331,549.44-102,639.76

Finding the Fourth Proportional to 221,033.16, 331,549.44 and 102,639.76

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Solution

The fourth proportional to 221,033.16, 331,549.44 and 102,639.76 is: 153,959.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,033.16 : 331,549.44 = 102,639.76 : x
  2. Step 2: Convert to fraction form
    221,033.16/331,549.44 = 102,639.76/x
  3. Step 3: Cross multiply
    221,033.16x = 331,549.44 × 102,639.76
  4. Step 4: Simplify right side
    221,033.16x = 34,030,154,949.73
  5. Step 5: Solve for x
    x = 34,030,154,949.73/221,033.16
  6. Step 6: Final answer
    x = 153,959.50

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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.