Home / 208,310.40-287,464.95-112,816.26

Finding the Fourth Proportional to 208,310.40, 287,464.95 and 112,816.26

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Solution

The fourth proportional to 208,310.40, 287,464.95 and 112,816.26 is: 155,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,310.40 : 287,464.95 = 112,816.26 : x
  2. Step 2: Convert to fraction form
    208,310.40/287,464.95 = 112,816.26/x
  3. Step 3: Cross multiply
    208,310.40x = 287,464.95 × 112,816.26
  4. Step 4: Simplify right side
    208,310.40x = 32,430,720,540.09
  5. Step 5: Solve for x
    x = 32,430,720,540.09/208,310.40
  6. Step 6: Final answer
    x = 155,684.60

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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.