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Finding the Fourth Proportional to 351,277.79, 526,918.03 and 85,037.87

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Solution

The fourth proportional to 351,277.79, 526,918.03 and 85,037.87 is: 127,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,277.79 : 526,918.03 = 85,037.87 : x
  2. Step 2: Convert to fraction form
    351,277.79/526,918.03 = 85,037.87/x
  3. Step 3: Cross multiply
    351,277.79x = 526,918.03 × 85,037.87
  4. Step 4: Simplify right side
    351,277.79x = 44,807,988,040.50
  5. Step 5: Solve for x
    x = 44,807,988,040.50/351,277.79
  6. Step 6: Final answer
    x = 127,557.14

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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.