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Finding the Fourth Proportional to 208,060.69, 287,123.65 and 117,435.66

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Solution

The fourth proportional to 208,060.69, 287,123.65 and 117,435.66 is: 162,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,060.69 : 287,123.65 = 117,435.66 : x
  2. Step 2: Convert to fraction form
    208,060.69/287,123.65 = 117,435.66/x
  3. Step 3: Cross multiply
    208,060.69x = 287,123.65 × 117,435.66
  4. Step 4: Simplify right side
    208,060.69x = 33,718,555,339.36
  5. Step 5: Solve for x
    x = 33,718,555,339.36/208,060.69
  6. Step 6: Final answer
    x = 162,061.15

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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.