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Finding the Fourth Proportional to 340,402.28, 469,768 and 187,447.16

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Solution

The fourth proportional to 340,402.28, 469,768 and 187,447.16 is: 258,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,402.28 : 469,768 = 187,447.16 : x
  2. Step 2: Convert to fraction form
    340,402.28/469,768 = 187,447.16/x
  3. Step 3: Cross multiply
    340,402.28x = 469,768 × 187,447.16
  4. Step 4: Simplify right side
    340,402.28x = 88,056,677,458.88
  5. Step 5: Solve for x
    x = 88,056,677,458.88/340,402.28
  6. Step 6: Final answer
    x = 258,684.16

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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.