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Finding the Fourth Proportional to 380,523.49, 570,601.15 and 140,474.72

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Solution

The fourth proportional to 380,523.49, 570,601.15 and 140,474.72 is: 210,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,523.49 : 570,601.15 = 140,474.72 : x
  2. Step 2: Convert to fraction form
    380,523.49/570,601.15 = 140,474.72/x
  3. Step 3: Cross multiply
    380,523.49x = 570,601.15 × 140,474.72
  4. Step 4: Simplify right side
    380,523.49x = 80,155,037,853.24
  5. Step 5: Solve for x
    x = 80,155,037,853.24/380,523.49
  6. Step 6: Final answer
    x = 210,644.13

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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.