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Finding the Fourth Proportional to 519,885.55, 779,822.13 and 164,902.65

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Solution

The fourth proportional to 519,885.55, 779,822.13 and 164,902.65 is: 247,352.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,885.55 : 779,822.13 = 164,902.65 : x
  2. Step 2: Convert to fraction form
    519,885.55/779,822.13 = 164,902.65/x
  3. Step 3: Cross multiply
    519,885.55x = 779,822.13 × 164,902.65
  4. Step 4: Simplify right side
    519,885.55x = 128,594,735,765.65
  5. Step 5: Solve for x
    x = 128,594,735,765.65/519,885.55
  6. Step 6: Final answer
    x = 247,352.01

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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.