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Finding the Fourth Proportional to 254,964.30, 382,118.40 and 155,018.40

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Solution

The fourth proportional to 254,964.30, 382,118.40 and 155,018.40 is: 232,328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,964.30 : 382,118.40 = 155,018.40 : x
  2. Step 2: Convert to fraction form
    254,964.30/382,118.40 = 155,018.40/x
  3. Step 3: Cross multiply
    254,964.30x = 382,118.40 × 155,018.40
  4. Step 4: Simplify right side
    254,964.30x = 59,235,382,978.56
  5. Step 5: Solve for x
    x = 59,235,382,978.56/254,964.30
  6. Step 6: Final answer
    x = 232,328.15

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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.