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Finding the Fourth Proportional to 340,040.65, 469,237.31 and 189,127.93

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Solution

The fourth proportional to 340,040.65, 469,237.31 and 189,127.93 is: 260,986.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,040.65 : 469,237.31 = 189,127.93 : x
  2. Step 2: Convert to fraction form
    340,040.65/469,237.31 = 189,127.93/x
  3. Step 3: Cross multiply
    340,040.65x = 469,237.31 × 189,127.93
  4. Step 4: Simplify right side
    340,040.65x = 88,745,880,173.43
  5. Step 5: Solve for x
    x = 88,745,880,173.43/340,040.65
  6. Step 6: Final answer
    x = 260,986.09

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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.