Home / 317,403.07-476,107.40-80,746

Finding the Fourth Proportional to 317,403.07, 476,107.40 and 80,746

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Solution

The fourth proportional to 317,403.07, 476,107.40 and 80,746 is: 121,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,403.07 : 476,107.40 = 80,746 : x
  2. Step 2: Convert to fraction form
    317,403.07/476,107.40 = 80,746/x
  3. Step 3: Cross multiply
    317,403.07x = 476,107.40 × 80,746
  4. Step 4: Simplify right side
    317,403.07x = 38,443,767,716.67
  5. Step 5: Solve for x
    x = 38,443,767,716.67/317,403.07
  6. Step 6: Final answer
    x = 121,119.71

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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.