Home / 208,215.60-287,338.44-112,722.30

Finding the Fourth Proportional to 208,215.60, 287,338.44 and 112,722.30

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Solution

The fourth proportional to 208,215.60, 287,338.44 and 112,722.30 is: 155,557.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,215.60 : 287,338.44 = 112,722.30 : x
  2. Step 2: Convert to fraction form
    208,215.60/287,338.44 = 112,722.30/x
  3. Step 3: Cross multiply
    208,215.60x = 287,338.44 × 112,722.30
  4. Step 4: Simplify right side
    208,215.60x = 32,389,449,835.21
  5. Step 5: Solve for x
    x = 32,389,449,835.21/208,215.60
  6. Step 6: Final answer
    x = 155,557.27

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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.