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Finding the Fourth Proportional to 388,859.40, 583,289.10 and 164,058.12

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Solution

The fourth proportional to 388,859.40, 583,289.10 and 164,058.12 is: 246,087.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,859.40 : 583,289.10 = 164,058.12 : x
  2. Step 2: Convert to fraction form
    388,859.40/583,289.10 = 164,058.12/x
  3. Step 3: Cross multiply
    388,859.40x = 583,289.10 × 164,058.12
  4. Step 4: Simplify right side
    388,859.40x = 95,693,313,162.49
  5. Step 5: Solve for x
    x = 95,693,313,162.49/388,859.40
  6. Step 6: Final answer
    x = 246,087.18

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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.