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Finding the Fourth Proportional to 380,787.82, 525,726.48 and 245,058.16

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Solution

The fourth proportional to 380,787.82, 525,726.48 and 245,058.16 is: 338,334.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,787.82 : 525,726.48 = 245,058.16 : x
  2. Step 2: Convert to fraction form
    380,787.82/525,726.48 = 245,058.16/x
  3. Step 3: Cross multiply
    380,787.82x = 525,726.48 × 245,058.16
  4. Step 4: Simplify right side
    380,787.82x = 128,833,563,852.08
  5. Step 5: Solve for x
    x = 128,833,563,852.08/380,787.82
  6. Step 6: Final answer
    x = 338,334.26

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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.