Home / 358,431.20-494,631.14-197,282.78

Finding the Fourth Proportional to 358,431.20, 494,631.14 and 197,282.78

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Solution

The fourth proportional to 358,431.20, 494,631.14 and 197,282.78 is: 272,248.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,431.20 : 494,631.14 = 197,282.78 : x
  2. Step 2: Convert to fraction form
    358,431.20/494,631.14 = 197,282.78/x
  3. Step 3: Cross multiply
    358,431.20x = 494,631.14 × 197,282.78
  4. Step 4: Simplify right side
    358,431.20x = 97,582,206,373.77
  5. Step 5: Solve for x
    x = 97,582,206,373.77/358,431.20
  6. Step 6: Final answer
    x = 272,248.08

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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.