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Finding the Fourth Proportional to 615,058.25, 922,653 and 260,108.15

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Solution

The fourth proportional to 615,058.25, 922,653 and 260,108.15 is: 390,189.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,058.25 : 922,653 = 260,108.15 : x
  2. Step 2: Convert to fraction form
    615,058.25/922,653 = 260,108.15/x
  3. Step 3: Cross multiply
    615,058.25x = 922,653 × 260,108.15
  4. Step 4: Simplify right side
    615,058.25x = 239,989,560,308.69
  5. Step 5: Solve for x
    x = 239,989,560,308.69/615,058.25
  6. Step 6: Final answer
    x = 390,189.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.