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Finding the Fourth Proportional to 317,841.51, 476,759.36 and 128,167.56

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Solution

The fourth proportional to 317,841.51, 476,759.36 and 128,167.56 is: 192,250.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,841.51 : 476,759.36 = 128,167.56 : x
  2. Step 2: Convert to fraction form
    317,841.51/476,759.36 = 128,167.56/x
  3. Step 3: Cross multiply
    317,841.51x = 476,759.36 × 128,167.56
  4. Step 4: Simplify right side
    317,841.51x = 61,105,083,237.52
  5. Step 5: Solve for x
    x = 61,105,083,237.52/317,841.51
  6. Step 6: Final answer
    x = 192,250.17

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1.5x scale

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.