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Finding the Fourth Proportional to 426,726, 588,881.88 and 238,310

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Solution

The fourth proportional to 426,726, 588,881.88 and 238,310 is: 328,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,726 : 588,881.88 = 238,310 : x
  2. Step 2: Convert to fraction form
    426,726/588,881.88 = 238,310/x
  3. Step 3: Cross multiply
    426,726x = 588,881.88 × 238,310
  4. Step 4: Simplify right side
    426,726x = 140,336,440,822.80
  5. Step 5: Solve for x
    x = 140,336,440,822.80/426,726
  6. Step 6: Final answer
    x = 328,867.80

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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.