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Finding the Fourth Proportional to 487,536.60, 731,013.30 and 251,340.60

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Solution

The fourth proportional to 487,536.60, 731,013.30 and 251,340.60 is: 376,860.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,536.60 : 731,013.30 = 251,340.60 : x
  2. Step 2: Convert to fraction form
    487,536.60/731,013.30 = 251,340.60/x
  3. Step 3: Cross multiply
    487,536.60x = 731,013.30 × 251,340.60
  4. Step 4: Simplify right side
    487,536.60x = 183,733,321,429.98
  5. Step 5: Solve for x
    x = 183,733,321,429.98/487,536.60
  6. Step 6: Final answer
    x = 376,860.57

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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.