Home / 208,217.40-287,336.58-112,723.32

Finding the Fourth Proportional to 208,217.40, 287,336.58 and 112,723.32

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Solution

The fourth proportional to 208,217.40, 287,336.58 and 112,723.32 is: 155,556.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,217.40 : 287,336.58 = 112,723.32 : x
  2. Step 2: Convert to fraction form
    208,217.40/287,336.58 = 112,723.32/x
  3. Step 3: Cross multiply
    208,217.40x = 287,336.58 × 112,723.32
  4. Step 4: Simplify right side
    208,217.40x = 32,389,533,255.05
  5. Step 5: Solve for x
    x = 32,389,533,255.05/208,217.40
  6. Step 6: Final answer
    x = 155,556.32

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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.