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Finding the Fourth Proportional to 342,475.48, 472,603.94 and 189,511.02

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Solution

The fourth proportional to 342,475.48, 472,603.94 and 189,511.02 is: 261,518.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,475.48 : 472,603.94 = 189,511.02 : x
  2. Step 2: Convert to fraction form
    342,475.48/472,603.94 = 189,511.02/x
  3. Step 3: Cross multiply
    342,475.48x = 472,603.94 × 189,511.02
  4. Step 4: Simplify right side
    342,475.48x = 89,563,654,725.42
  5. Step 5: Solve for x
    x = 89,563,654,725.42/342,475.48
  6. Step 6: Final answer
    x = 261,518.44

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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.