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Finding the Fourth Proportional to 187,218.40, 280,827.60 and 116,359.60

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Solution

The fourth proportional to 187,218.40, 280,827.60 and 116,359.60 is: 174,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,218.40 : 280,827.60 = 116,359.60 : x
  2. Step 2: Convert to fraction form
    187,218.40/280,827.60 = 116,359.60/x
  3. Step 3: Cross multiply
    187,218.40x = 280,827.60 × 116,359.60
  4. Step 4: Simplify right side
    187,218.40x = 32,676,987,204.96
  5. Step 5: Solve for x
    x = 32,676,987,204.96/187,218.40
  6. Step 6: Final answer
    x = 174,539.40

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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.