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Finding the Fourth Proportional to 190,959.52, 286,446.48 and 72,608.80

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Solution

The fourth proportional to 190,959.52, 286,446.48 and 72,608.80 is: 108,915.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,959.52 : 286,446.48 = 72,608.80 : x
  2. Step 2: Convert to fraction form
    190,959.52/286,446.48 = 72,608.80/x
  3. Step 3: Cross multiply
    190,959.52x = 286,446.48 × 72,608.80
  4. Step 4: Simplify right side
    190,959.52x = 20,798,535,177.02
  5. Step 5: Solve for x
    x = 20,798,535,177.02/190,959.52
  6. Step 6: Final answer
    x = 108,915.94

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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.