Home / 211,643.33-317,461.50-85,280.49

Finding the Fourth Proportional to 211,643.33, 317,461.50 and 85,280.49

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Solution

The fourth proportional to 211,643.33, 317,461.50 and 85,280.49 is: 127,919.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,643.33 : 317,461.50 = 85,280.49 : x
  2. Step 2: Convert to fraction form
    211,643.33/317,461.50 = 85,280.49/x
  3. Step 3: Cross multiply
    211,643.33x = 317,461.50 × 85,280.49
  4. Step 4: Simplify right side
    211,643.33x = 27,073,272,276.14
  5. Step 5: Solve for x
    x = 27,073,272,276.14/211,643.33
  6. Step 6: Final answer
    x = 127,919.33

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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.