Home / 208,311.35-287,493.05-117,673.16

Finding the Fourth Proportional to 208,311.35, 287,493.05 and 117,673.16

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Solution

The fourth proportional to 208,311.35, 287,493.05 and 117,673.16 is: 162,402.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,311.35 : 287,493.05 = 117,673.16 : x
  2. Step 2: Convert to fraction form
    208,311.35/287,493.05 = 117,673.16/x
  3. Step 3: Cross multiply
    208,311.35x = 287,493.05 × 117,673.16
  4. Step 4: Simplify right side
    208,311.35x = 33,830,213,866.34
  5. Step 5: Solve for x
    x = 33,830,213,866.34/208,311.35
  6. Step 6: Final answer
    x = 162,402.17

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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.