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Finding the Fourth Proportional to 187,482.48, 280,982.16 and 69,013.50

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Solution

The fourth proportional to 187,482.48, 280,982.16 and 69,013.50 is: 103,431.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,482.48 : 280,982.16 = 69,013.50 : x
  2. Step 2: Convert to fraction form
    187,482.48/280,982.16 = 69,013.50/x
  3. Step 3: Cross multiply
    187,482.48x = 280,982.16 × 69,013.50
  4. Step 4: Simplify right side
    187,482.48x = 19,391,562,299.16
  5. Step 5: Solve for x
    x = 19,391,562,299.16/187,482.48
  6. Step 6: Final answer
    x = 103,431.33

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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.