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Finding the Fourth Proportional to 208,045.68, 287,110.36 and 117,396.36

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Solution

The fourth proportional to 208,045.68, 287,110.36 and 117,396.36 is: 162,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,045.68 : 287,110.36 = 117,396.36 : x
  2. Step 2: Convert to fraction form
    208,045.68/287,110.36 = 117,396.36/x
  3. Step 3: Cross multiply
    208,045.68x = 287,110.36 × 117,396.36
  4. Step 4: Simplify right side
    208,045.68x = 33,705,711,182.29
  5. Step 5: Solve for x
    x = 33,705,711,182.29/208,045.68
  6. Step 6: Final answer
    x = 162,011.11

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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.