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Finding the Fourth Proportional to 255,974.04, 384,006.62 and 87,513.08

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Solution

The fourth proportional to 255,974.04, 384,006.62 and 87,513.08 is: 131,285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,974.04 : 384,006.62 = 87,513.08 : x
  2. Step 2: Convert to fraction form
    255,974.04/384,006.62 = 87,513.08/x
  3. Step 3: Cross multiply
    255,974.04x = 384,006.62 × 87,513.08
  4. Step 4: Simplify right side
    255,974.04x = 33,605,600,355.34
  5. Step 5: Solve for x
    x = 33,605,600,355.34/255,974.04
  6. Step 6: Final answer
    x = 131,285.19

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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.