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Finding the Fourth Proportional to 368,285.58, 508,229.08 and 207,140.56

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Solution

The fourth proportional to 368,285.58, 508,229.08 and 207,140.56 is: 285,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,285.58 : 508,229.08 = 207,140.56 : x
  2. Step 2: Convert to fraction form
    368,285.58/508,229.08 = 207,140.56/x
  3. Step 3: Cross multiply
    368,285.58x = 508,229.08 × 207,140.56
  4. Step 4: Simplify right side
    368,285.58x = 105,274,856,239.49
  5. Step 5: Solve for x
    x = 105,274,856,239.49/368,285.58
  6. Step 6: Final answer
    x = 285,851.15

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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.