Home / 194,612.40-291,688.20-145,306.80

Finding the Fourth Proportional to 194,612.40, 291,688.20 and 145,306.80

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Solution

The fourth proportional to 194,612.40, 291,688.20 and 145,306.80 is: 217,788.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,612.40 : 291,688.20 = 145,306.80 : x
  2. Step 2: Convert to fraction form
    194,612.40/291,688.20 = 145,306.80/x
  3. Step 3: Cross multiply
    194,612.40x = 291,688.20 × 145,306.80
  4. Step 4: Simplify right side
    194,612.40x = 42,384,278,939.76
  5. Step 5: Solve for x
    x = 42,384,278,939.76/194,612.40
  6. Step 6: Final answer
    x = 217,788.17

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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.