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Finding the Fourth Proportional to 401,015.26, 553,393.83 and 237,781.63

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Solution

The fourth proportional to 401,015.26, 553,393.83 and 237,781.63 is: 328,134.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,015.26 : 553,393.83 = 237,781.63 : x
  2. Step 2: Convert to fraction form
    401,015.26/553,393.83 = 237,781.63/x
  3. Step 3: Cross multiply
    401,015.26x = 553,393.83 × 237,781.63
  4. Step 4: Simplify right side
    401,015.26x = 131,586,886,929.34
  5. Step 5: Solve for x
    x = 131,586,886,929.34/401,015.26
  6. Step 6: Final answer
    x = 328,134.36

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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.