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Finding the Fourth Proportional to 245,747.37, 368,709.80 and 85,846.93

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Solution

The fourth proportional to 245,747.37, 368,709.80 and 85,846.93 is: 128,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,747.37 : 368,709.80 = 85,846.93 : x
  2. Step 2: Convert to fraction form
    245,747.37/368,709.80 = 85,846.93/x
  3. Step 3: Cross multiply
    245,747.37x = 368,709.80 × 85,846.93
  4. Step 4: Simplify right side
    245,747.37x = 31,652,604,390.91
  5. Step 5: Solve for x
    x = 31,652,604,390.91/245,747.37
  6. Step 6: Final answer
    x = 128,801.40

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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.