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Finding the Fourth Proportional to 643,281.07, 964,552.44 and 243,666.97

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Solution

The fourth proportional to 643,281.07, 964,552.44 and 243,666.97 is: 365,360.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,281.07 : 964,552.44 = 243,666.97 : x
  2. Step 2: Convert to fraction form
    643,281.07/964,552.44 = 243,666.97/x
  3. Step 3: Cross multiply
    643,281.07x = 964,552.44 × 243,666.97
  4. Step 4: Simplify right side
    643,281.07x = 235,029,570,460.91
  5. Step 5: Solve for x
    x = 235,029,570,460.91/643,281.07
  6. Step 6: Final answer
    x = 365,360.62

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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.