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Finding the Fourth Proportional to 250,980.52, 346,353.90 and 137,810.68

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Solution

The fourth proportional to 250,980.52, 346,353.90 and 137,810.68 is: 190,179.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,980.52 : 346,353.90 = 137,810.68 : x
  2. Step 2: Convert to fraction form
    250,980.52/346,353.90 = 137,810.68/x
  3. Step 3: Cross multiply
    250,980.52x = 346,353.90 × 137,810.68
  4. Step 4: Simplify right side
    250,980.52x = 47,731,266,479.65
  5. Step 5: Solve for x
    x = 47,731,266,479.65/250,980.52
  6. Step 6: Final answer
    x = 190,179.17

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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.