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Finding the Fourth Proportional to 306,604.98, 423,594.78 and 234,261.07

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Solution

The fourth proportional to 306,604.98, 423,594.78 and 234,261.07 is: 323,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,604.98 : 423,594.78 = 234,261.07 : x
  2. Step 2: Convert to fraction form
    306,604.98/423,594.78 = 234,261.07/x
  3. Step 3: Cross multiply
    306,604.98x = 423,594.78 × 234,261.07
  4. Step 4: Simplify right side
    306,604.98x = 99,231,766,980.83
  5. Step 5: Solve for x
    x = 99,231,766,980.83/306,604.98
  6. Step 6: Final answer
    x = 323,646.95

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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.