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Finding the Fourth Proportional to 208,374.08, 287,555.08 and 112,882.64

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Solution

The fourth proportional to 208,374.08, 287,555.08 and 112,882.64 is: 155,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,374.08 : 287,555.08 = 112,882.64 : x
  2. Step 2: Convert to fraction form
    208,374.08/287,555.08 = 112,882.64/x
  3. Step 3: Cross multiply
    208,374.08x = 287,555.08 × 112,882.64
  4. Step 4: Simplify right side
    208,374.08x = 32,459,976,575.81
  5. Step 5: Solve for x
    x = 32,459,976,575.81/208,374.08
  6. Step 6: Final answer
    x = 155,777.42

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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.