Home / 317,914.20-476,870.06-81,256.50

Finding the Fourth Proportional to 317,914.20, 476,870.06 and 81,256.50

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Solution

The fourth proportional to 317,914.20, 476,870.06 and 81,256.50 is: 121,884.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,914.20 : 476,870.06 = 81,256.50 : x
  2. Step 2: Convert to fraction form
    317,914.20/476,870.06 = 81,256.50/x
  3. Step 3: Cross multiply
    317,914.20x = 476,870.06 × 81,256.50
  4. Step 4: Simplify right side
    317,914.20x = 38,748,792,030.39
  5. Step 5: Solve for x
    x = 38,748,792,030.39/317,914.20
  6. Step 6: Final answer
    x = 121,884.43

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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.