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Finding the Fourth Proportional to 401,548.79, 554,154.72 and 240,372.66

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Solution

The fourth proportional to 401,548.79, 554,154.72 and 240,372.66 is: 331,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,548.79 : 554,154.72 = 240,372.66 : x
  2. Step 2: Convert to fraction form
    401,548.79/554,154.72 = 240,372.66/x
  3. Step 3: Cross multiply
    401,548.79x = 554,154.72 × 240,372.66
  4. Step 4: Simplify right side
    401,548.79x = 133,203,645,274.64
  5. Step 5: Solve for x
    x = 133,203,645,274.64/401,548.79
  6. Step 6: Final answer
    x = 331,724.68

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1.5x scale

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.