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Finding the Fourth Proportional to 401,281.93, 553,825.62 and 248,369.15

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Solution

The fourth proportional to 401,281.93, 553,825.62 and 248,369.15 is: 342,784.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,281.93 : 553,825.62 = 248,369.15 : x
  2. Step 2: Convert to fraction form
    401,281.93/553,825.62 = 248,369.15/x
  3. Step 3: Cross multiply
    401,281.93x = 553,825.62 × 248,369.15
  4. Step 4: Simplify right side
    401,281.93x = 137,553,199,872.19
  5. Step 5: Solve for x
    x = 137,553,199,872.19/401,281.93
  6. Step 6: Final answer
    x = 342,784.43

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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.