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Finding the Fourth Proportional to 368,799.64, 553,709.04 and 254,679.76

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Solution

The fourth proportional to 368,799.64, 553,709.04 and 254,679.76 is: 382,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,799.64 : 553,709.04 = 254,679.76 : x
  2. Step 2: Convert to fraction form
    368,799.64/553,709.04 = 254,679.76/x
  3. Step 3: Cross multiply
    368,799.64x = 553,709.04 × 254,679.76
  4. Step 4: Simplify right side
    368,799.64x = 141,018,485,417.03
  5. Step 5: Solve for x
    x = 141,018,485,417.03/368,799.64
  6. Step 6: Final answer
    x = 382,371.54

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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.