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Finding the Fourth Proportional to 187,080.30, 280,413.09 and 112,301.10

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Solution

The fourth proportional to 187,080.30, 280,413.09 and 112,301.10 is: 168,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,080.30 : 280,413.09 = 112,301.10 : x
  2. Step 2: Convert to fraction form
    187,080.30/280,413.09 = 112,301.10/x
  3. Step 3: Cross multiply
    187,080.30x = 280,413.09 × 112,301.10
  4. Step 4: Simplify right side
    187,080.30x = 31,490,698,461.40
  5. Step 5: Solve for x
    x = 31,490,698,461.40/187,080.30
  6. Step 6: Final answer
    x = 168,327.18

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1.5x scale

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.