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Finding the Fourth Proportional to 208,207.44, 287,323.56 and 118,800.72

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Solution

The fourth proportional to 208,207.44, 287,323.56 and 118,800.72 is: 163,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,207.44 : 287,323.56 = 118,800.72 : x
  2. Step 2: Convert to fraction form
    208,207.44/287,323.56 = 118,800.72/x
  3. Step 3: Cross multiply
    208,207.44x = 287,323.56 × 118,800.72
  4. Step 4: Simplify right side
    208,207.44x = 34,134,245,800.96
  5. Step 5: Solve for x
    x = 34,134,245,800.96/208,207.44
  6. Step 6: Final answer
    x = 163,943.45

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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.