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Finding the Fourth Proportional to 380,260.52, 570,373.48 and 127,521.56

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Solution

The fourth proportional to 380,260.52, 570,373.48 and 127,521.56 is: 191,276.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,260.52 : 570,373.48 = 127,521.56 : x
  2. Step 2: Convert to fraction form
    380,260.52/570,373.48 = 127,521.56/x
  3. Step 3: Cross multiply
    380,260.52x = 570,373.48 × 127,521.56
  4. Step 4: Simplify right side
    380,260.52x = 72,734,915,952.23
  5. Step 5: Solve for x
    x = 72,734,915,952.23/380,260.52
  6. Step 6: Final answer
    x = 191,276.54

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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.