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Finding the Fourth Proportional to 401,865.67, 554,602.35 and 265,663.42

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Solution

The fourth proportional to 401,865.67, 554,602.35 and 265,663.42 is: 366,633.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,865.67 : 554,602.35 = 265,663.42 : x
  2. Step 2: Convert to fraction form
    401,865.67/554,602.35 = 265,663.42/x
  3. Step 3: Cross multiply
    401,865.67x = 554,602.35 × 265,663.42
  4. Step 4: Simplify right side
    401,865.67x = 147,337,557,041.04
  5. Step 5: Solve for x
    x = 147,337,557,041.04/401,865.67
  6. Step 6: Final answer
    x = 366,633.85

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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.