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Finding the Fourth Proportional to 261,018.72, 360,195.36 and 147,834.72

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Solution

The fourth proportional to 261,018.72, 360,195.36 and 147,834.72 is: 204,005.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,018.72 : 360,195.36 = 147,834.72 : x
  2. Step 2: Convert to fraction form
    261,018.72/360,195.36 = 147,834.72/x
  3. Step 3: Cross multiply
    261,018.72x = 360,195.36 × 147,834.72
  4. Step 4: Simplify right side
    261,018.72x = 53,249,380,190.90
  5. Step 5: Solve for x
    x = 53,249,380,190.90/261,018.72
  6. Step 6: Final answer
    x = 204,005.98

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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.