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Finding the Fourth Proportional to 442,818.32, 611,102.76 and 251,859.20

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Solution

The fourth proportional to 442,818.32, 611,102.76 and 251,859.20 is: 347,573.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,818.32 : 611,102.76 = 251,859.20 : x
  2. Step 2: Convert to fraction form
    442,818.32/611,102.76 = 251,859.20/x
  3. Step 3: Cross multiply
    442,818.32x = 611,102.76 × 251,859.20
  4. Step 4: Simplify right side
    442,818.32x = 153,911,852,251.39
  5. Step 5: Solve for x
    x = 153,911,852,251.39/442,818.32
  6. Step 6: Final answer
    x = 347,573.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.