Home / 317,910.32-476,864.26-81,252.62

Finding the Fourth Proportional to 317,910.32, 476,864.26 and 81,252.62

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Solution

The fourth proportional to 317,910.32, 476,864.26 and 81,252.62 is: 121,878.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,910.32 : 476,864.26 = 81,252.62 : x
  2. Step 2: Convert to fraction form
    317,910.32/476,864.26 = 81,252.62/x
  3. Step 3: Cross multiply
    317,910.32x = 476,864.26 × 81,252.62
  4. Step 4: Simplify right side
    317,910.32x = 38,746,470,509.36
  5. Step 5: Solve for x
    x = 38,746,470,509.36/317,910.32
  6. Step 6: Final answer
    x = 121,878.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.