Home / 211,938.80-317,710.56-71,599.28

Finding the Fourth Proportional to 211,938.80, 317,710.56 and 71,599.28

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Solution

The fourth proportional to 211,938.80, 317,710.56 and 71,599.28 is: 107,332.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,938.80 : 317,710.56 = 71,599.28 : x
  2. Step 2: Convert to fraction form
    211,938.80/317,710.56 = 71,599.28/x
  3. Step 3: Cross multiply
    211,938.80x = 317,710.56 × 71,599.28
  4. Step 4: Simplify right side
    211,938.80x = 22,747,847,344.40
  5. Step 5: Solve for x
    x = 22,747,847,344.40/211,938.80
  6. Step 6: Final answer
    x = 107,332.15

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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.