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Finding the Fourth Proportional to 354,726.40, 532,115.20 and 214,182.40

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Solution

The fourth proportional to 354,726.40, 532,115.20 and 214,182.40 is: 321,289.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,726.40 : 532,115.20 = 214,182.40 : x
  2. Step 2: Convert to fraction form
    354,726.40/532,115.20 = 214,182.40/x
  3. Step 3: Cross multiply
    354,726.40x = 532,115.20 × 214,182.40
  4. Step 4: Simplify right side
    354,726.40x = 113,969,710,612.48
  5. Step 5: Solve for x
    x = 113,969,710,612.48/354,726.40
  6. Step 6: Final answer
    x = 321,289.06

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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.