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Finding the Fourth Proportional to 288,004.80, 402,273.60 and 288,004.80

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Solution

The fourth proportional to 288,004.80, 402,273.60 and 288,004.80 is: 402,273.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,004.80 : 402,273.60 = 288,004.80 : x
  2. Step 2: Convert to fraction form
    288,004.80/402,273.60 = 288,004.80/x
  3. Step 3: Cross multiply
    288,004.80x = 402,273.60 × 288,004.80
  4. Step 4: Simplify right side
    288,004.80x = 115,856,727,713.28
  5. Step 5: Solve for x
    x = 115,856,727,713.28/288,004.80
  6. Step 6: Final answer
    x = 402,273.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.