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Finding the Fourth Proportional to 288,287.64, 397,618.02 and 248,068.80

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Solution

The fourth proportional to 288,287.64, 397,618.02 and 248,068.80 is: 342,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,287.64 : 397,618.02 = 248,068.80 : x
  2. Step 2: Convert to fraction form
    288,287.64/397,618.02 = 248,068.80/x
  3. Step 3: Cross multiply
    288,287.64x = 397,618.02 × 248,068.80
  4. Step 4: Simplify right side
    288,287.64x = 98,636,625,079.78
  5. Step 5: Solve for x
    x = 98,636,625,079.78/288,287.64
  6. Step 6: Final answer
    x = 342,146.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.