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Finding the Fourth Proportional to 287,975.94, 432,046.81 and 88,325.62

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Solution

The fourth proportional to 287,975.94, 432,046.81 and 88,325.62 is: 132,513.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,975.94 : 432,046.81 = 88,325.62 : x
  2. Step 2: Convert to fraction form
    287,975.94/432,046.81 = 88,325.62/x
  3. Step 3: Cross multiply
    287,975.94x = 432,046.81 × 88,325.62
  4. Step 4: Simplify right side
    287,975.94x = 38,160,802,362.27
  5. Step 5: Solve for x
    x = 38,160,802,362.27/287,975.94
  6. Step 6: Final answer
    x = 132,513.86

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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.