Home / 208,393.27-287,583.01-112,899.96

Finding the Fourth Proportional to 208,393.27, 287,583.01 and 112,899.96

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Solution

The fourth proportional to 208,393.27, 287,583.01 and 112,899.96 is: 155,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,393.27 : 287,583.01 = 112,899.96 : x
  2. Step 2: Convert to fraction form
    208,393.27/287,583.01 = 112,899.96/x
  3. Step 3: Cross multiply
    208,393.27x = 287,583.01 × 112,899.96
  4. Step 4: Simplify right side
    208,393.27x = 32,468,110,043.43
  5. Step 5: Solve for x
    x = 32,468,110,043.43/208,393.27
  6. Step 6: Final answer
    x = 155,802.11

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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.