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Finding the Fourth Proportional to 208,050.88, 287,112.29 and 112,559.62

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Solution

The fourth proportional to 208,050.88, 287,112.29 and 112,559.62 is: 155,333.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,050.88 : 287,112.29 = 112,559.62 : x
  2. Step 2: Convert to fraction form
    208,050.88/287,112.29 = 112,559.62/x
  3. Step 3: Cross multiply
    208,050.88x = 287,112.29 × 112,559.62
  4. Step 4: Simplify right side
    208,050.88x = 32,317,250,259.73
  5. Step 5: Solve for x
    x = 32,317,250,259.73/208,050.88
  6. Step 6: Final answer
    x = 155,333.40

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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.