Home / 358,631.66-494,913.12-215,394.14

Finding the Fourth Proportional to 358,631.66, 494,913.12 and 215,394.14

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Solution

The fourth proportional to 358,631.66, 494,913.12 and 215,394.14 is: 297,244.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,631.66 : 494,913.12 = 215,394.14 : x
  2. Step 2: Convert to fraction form
    358,631.66/494,913.12 = 215,394.14/x
  3. Step 3: Cross multiply
    358,631.66x = 494,913.12 × 215,394.14
  4. Step 4: Simplify right side
    358,631.66x = 106,601,385,857.12
  5. Step 5: Solve for x
    x = 106,601,385,857.12/358,631.66
  6. Step 6: Final answer
    x = 297,244.77

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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.