Home / 208,281.42-287,213.33-178,166.43

Finding the Fourth Proportional to 208,281.42, 287,213.33 and 178,166.43

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Solution

The fourth proportional to 208,281.42, 287,213.33 and 178,166.43 is: 245,685.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,281.42 : 287,213.33 = 178,166.43 : x
  2. Step 2: Convert to fraction form
    208,281.42/287,213.33 = 178,166.43/x
  3. Step 3: Cross multiply
    208,281.42x = 287,213.33 × 178,166.43
  4. Step 4: Simplify right side
    208,281.42x = 51,171,774,099.93
  5. Step 5: Solve for x
    x = 51,171,774,099.93/208,281.42
  6. Step 6: Final answer
    x = 245,685.74

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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.