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Finding the Fourth Proportional to 148,870.20, 222,959.70 and 145,414.20

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Solution

The fourth proportional to 148,870.20, 222,959.70 and 145,414.20 is: 217,783.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,870.20 : 222,959.70 = 145,414.20 : x
  2. Step 2: Convert to fraction form
    148,870.20/222,959.70 = 145,414.20/x
  3. Step 3: Cross multiply
    148,870.20x = 222,959.70 × 145,414.20
  4. Step 4: Simplify right side
    148,870.20x = 32,421,506,407.74
  5. Step 5: Solve for x
    x = 32,421,506,407.74/148,870.20
  6. Step 6: Final answer
    x = 217,783.72

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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.