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Finding the Fourth Proportional to 268,973.40, 403,460.10 and 255,149.40

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Solution

The fourth proportional to 268,973.40, 403,460.10 and 255,149.40 is: 382,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,973.40 : 403,460.10 = 255,149.40 : x
  2. Step 2: Convert to fraction form
    268,973.40/403,460.10 = 255,149.40/x
  3. Step 3: Cross multiply
    268,973.40x = 403,460.10 × 255,149.40
  4. Step 4: Simplify right side
    268,973.40x = 102,942,602,438.94
  5. Step 5: Solve for x
    x = 102,942,602,438.94/268,973.40
  6. Step 6: Final answer
    x = 382,724.10

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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.