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Finding the Fourth Proportional to 187,316.40, 280,974.60 and 186,004.20

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Solution

The fourth proportional to 187,316.40, 280,974.60 and 186,004.20 is: 279,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,316.40 : 280,974.60 = 186,004.20 : x
  2. Step 2: Convert to fraction form
    187,316.40/280,974.60 = 186,004.20/x
  3. Step 3: Cross multiply
    187,316.40x = 280,974.60 × 186,004.20
  4. Step 4: Simplify right side
    187,316.40x = 52,262,455,693.32
  5. Step 5: Solve for x
    x = 52,262,455,693.32/187,316.40
  6. Step 6: Final answer
    x = 279,006.30

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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.