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Finding the Fourth Proportional to 475,142.36, 655,697.23 and 260,277.71

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Solution

The fourth proportional to 475,142.36, 655,697.23 and 260,277.71 is: 359,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,142.36 : 655,697.23 = 260,277.71 : x
  2. Step 2: Convert to fraction form
    475,142.36/655,697.23 = 260,277.71/x
  3. Step 3: Cross multiply
    475,142.36x = 655,697.23 × 260,277.71
  4. Step 4: Simplify right side
    475,142.36x = 170,663,369,548.56
  5. Step 5: Solve for x
    x = 170,663,369,548.56/475,142.36
  6. Step 6: Final answer
    x = 359,183.66

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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.