Home / 464,375.20-640,834.32-263,178.40

Finding the Fourth Proportional to 464,375.20, 640,834.32 and 263,178.40

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Solution

The fourth proportional to 464,375.20, 640,834.32 and 263,178.40 is: 363,184.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,375.20 : 640,834.32 = 263,178.40 : x
  2. Step 2: Convert to fraction form
    464,375.20/640,834.32 = 263,178.40/x
  3. Step 3: Cross multiply
    464,375.20x = 640,834.32 × 263,178.40
  4. Step 4: Simplify right side
    464,375.20x = 168,653,751,002.69
  5. Step 5: Solve for x
    x = 168,653,751,002.69/464,375.20
  6. Step 6: Final answer
    x = 363,184.23

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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.