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Finding the Fourth Proportional to 287,958.65, 397,284.95 and 174,759.53

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Solution

The fourth proportional to 287,958.65, 397,284.95 and 174,759.53 is: 241,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,958.65 : 397,284.95 = 174,759.53 : x
  2. Step 2: Convert to fraction form
    287,958.65/397,284.95 = 174,759.53/x
  3. Step 3: Cross multiply
    287,958.65x = 397,284.95 × 174,759.53
  4. Step 4: Simplify right side
    287,958.65x = 69,429,329,588.55
  5. Step 5: Solve for x
    x = 69,429,329,588.55/287,958.65
  6. Step 6: Final answer
    x = 241,108.68

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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.