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Finding the Fourth Proportional to 554,432.73, 831,521.93 and 155,101.65

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Solution

The fourth proportional to 554,432.73, 831,521.93 and 155,101.65 is: 232,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,432.73 : 831,521.93 = 155,101.65 : x
  2. Step 2: Convert to fraction form
    554,432.73/831,521.93 = 155,101.65/x
  3. Step 3: Cross multiply
    554,432.73x = 831,521.93 × 155,101.65
  4. Step 4: Simplify right side
    554,432.73x = 128,970,422,578.68
  5. Step 5: Solve for x
    x = 128,970,422,578.68/554,432.73
  6. Step 6: Final answer
    x = 232,616.90

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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.