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Finding the Fourth Proportional to 487,599.60, 731,107.80 and 251,403.60

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Solution

The fourth proportional to 487,599.60, 731,107.80 and 251,403.60 is: 376,955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,599.60 : 731,107.80 = 251,403.60 : x
  2. Step 2: Convert to fraction form
    487,599.60/731,107.80 = 251,403.60/x
  3. Step 3: Cross multiply
    487,599.60x = 731,107.80 × 251,403.60
  4. Step 4: Simplify right side
    487,599.60x = 183,803,132,908.08
  5. Step 5: Solve for x
    x = 183,803,132,908.08/487,599.60
  6. Step 6: Final answer
    x = 376,955.05

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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.