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Finding the Fourth Proportional to 310,054.90, 465,082.35 and 220,825.30

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Solution

The fourth proportional to 310,054.90, 465,082.35 and 220,825.30 is: 331,237.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,054.90 : 465,082.35 = 220,825.30 : x
  2. Step 2: Convert to fraction form
    310,054.90/465,082.35 = 220,825.30/x
  3. Step 3: Cross multiply
    310,054.90x = 465,082.35 × 220,825.30
  4. Step 4: Simplify right side
    310,054.90x = 102,701,949,463.46
  5. Step 5: Solve for x
    x = 102,701,949,463.46/310,054.90
  6. Step 6: Final answer
    x = 331,237.95

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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.