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Finding the Fourth Proportional to 487,833.60, 731,804.16 and 155,333.12

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Solution

The fourth proportional to 487,833.60, 731,804.16 and 155,333.12 is: 233,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,833.60 : 731,804.16 = 155,333.12 : x
  2. Step 2: Convert to fraction form
    487,833.60/731,804.16 = 155,333.12/x
  3. Step 3: Cross multiply
    487,833.60x = 731,804.16 × 155,333.12
  4. Step 4: Simplify right side
    487,833.60x = 113,673,423,401.78
  5. Step 5: Solve for x
    x = 113,673,423,401.78/487,833.60
  6. Step 6: Final answer
    x = 233,016.80

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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.