Home / 208,215.46-287,337.43-112,722.16

Finding the Fourth Proportional to 208,215.46, 287,337.43 and 112,722.16

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Solution

The fourth proportional to 208,215.46, 287,337.43 and 112,722.16 is: 155,556.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,215.46 : 287,337.43 = 112,722.16 : x
  2. Step 2: Convert to fraction form
    208,215.46/287,337.43 = 112,722.16/x
  3. Step 3: Cross multiply
    208,215.46x = 287,337.43 × 112,722.16
  4. Step 4: Simplify right side
    208,215.46x = 32,389,294,321.76
  5. Step 5: Solve for x
    x = 32,389,294,321.76/208,215.46
  6. Step 6: Final answer
    x = 155,556.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.