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Finding the Fourth Proportional to 487,675.89, 731,538.31 and 155,277.81

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Solution

The fourth proportional to 487,675.89, 731,538.31 and 155,277.81 is: 232,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,675.89 : 731,538.31 = 155,277.81 : x
  2. Step 2: Convert to fraction form
    487,675.89/731,538.31 = 155,277.81/x
  3. Step 3: Cross multiply
    487,675.89x = 731,538.31 × 155,277.81
  4. Step 4: Simplify right side
    487,675.89x = 113,591,662,662.02
  5. Step 5: Solve for x
    x = 113,591,662,662.02/487,675.89
  6. Step 6: Final answer
    x = 232,924.50

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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.