Home / 358,976.24-495,358.40-208,082.96

Finding the Fourth Proportional to 358,976.24, 495,358.40 and 208,082.96

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Solution

The fourth proportional to 358,976.24, 495,358.40 and 208,082.96 is: 287,137.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,976.24 : 495,358.40 = 208,082.96 : x
  2. Step 2: Convert to fraction form
    358,976.24/495,358.40 = 208,082.96/x
  3. Step 3: Cross multiply
    358,976.24x = 495,358.40 × 208,082.96
  4. Step 4: Simplify right side
    358,976.24x = 103,075,642,132.86
  5. Step 5: Solve for x
    x = 103,075,642,132.86/358,976.24
  6. Step 6: Final answer
    x = 287,137.78

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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.