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Finding the Fourth Proportional to 208,049.63, 287,110.56 and 112,558.37

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Solution

The fourth proportional to 208,049.63, 287,110.56 and 112,558.37 is: 155,331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,049.63 : 287,110.56 = 112,558.37 : x
  2. Step 2: Convert to fraction form
    208,049.63/287,110.56 = 112,558.37/x
  3. Step 3: Cross multiply
    208,049.63x = 287,110.56 × 112,558.37
  4. Step 4: Simplify right side
    208,049.63x = 32,316,697,361.16
  5. Step 5: Solve for x
    x = 32,316,697,361.16/208,049.63
  6. Step 6: Final answer
    x = 155,331.68

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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.