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Finding the Fourth Proportional to 358,215.69, 494,340.87 and 194,875.76

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Solution

The fourth proportional to 358,215.69, 494,340.87 and 194,875.76 is: 268,930.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,215.69 : 494,340.87 = 194,875.76 : x
  2. Step 2: Convert to fraction form
    358,215.69/494,340.87 = 194,875.76/x
  3. Step 3: Cross multiply
    358,215.69x = 494,340.87 × 194,875.76
  4. Step 4: Simplify right side
    358,215.69x = 96,335,050,268.61
  5. Step 5: Solve for x
    x = 96,335,050,268.61/358,215.69
  6. Step 6: Final answer
    x = 268,930.29

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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.