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Finding the Fourth Proportional to 208,374.29, 287,539.44 and 117,738.13

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Solution

The fourth proportional to 208,374.29, 287,539.44 and 117,738.13 is: 162,468.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,374.29 : 287,539.44 = 117,738.13 : x
  2. Step 2: Convert to fraction form
    208,374.29/287,539.44 = 117,738.13/x
  3. Step 3: Cross multiply
    208,374.29x = 287,539.44 × 117,738.13
  4. Step 4: Simplify right side
    208,374.29x = 33,854,355,966.85
  5. Step 5: Solve for x
    x = 33,854,355,966.85/208,374.29
  6. Step 6: Final answer
    x = 162,468.97

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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.