Home / 208,369.13-287,551.40-112,877.89

Finding the Fourth Proportional to 208,369.13, 287,551.40 and 112,877.89

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Solution

The fourth proportional to 208,369.13, 287,551.40 and 112,877.89 is: 155,772.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,369.13 : 287,551.40 = 112,877.89 : x
  2. Step 2: Convert to fraction form
    208,369.13/287,551.40 = 112,877.89/x
  3. Step 3: Cross multiply
    208,369.13x = 287,551.40 × 112,877.89
  4. Step 4: Simplify right side
    208,369.13x = 32,458,194,015.28
  5. Step 5: Solve for x
    x = 32,458,194,015.28/208,369.13
  6. Step 6: Final answer
    x = 155,772.57

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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.