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Finding the Fourth Proportional to 368,147.52, 508,041.60 and 207,002.88

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Solution

The fourth proportional to 368,147.52, 508,041.60 and 207,002.88 is: 285,662.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,147.52 : 508,041.60 = 207,002.88 : x
  2. Step 2: Convert to fraction form
    368,147.52/508,041.60 = 207,002.88/x
  3. Step 3: Cross multiply
    368,147.52x = 508,041.60 × 207,002.88
  4. Step 4: Simplify right side
    368,147.52x = 105,166,074,359.81
  5. Step 5: Solve for x
    x = 105,166,074,359.81/368,147.52
  6. Step 6: Final answer
    x = 285,662.86

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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.