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Finding the Fourth Proportional to 437,149, 655,285.74 and 170,542.72

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Solution

The fourth proportional to 437,149, 655,285.74 and 170,542.72 is: 255,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,149 : 655,285.74 = 170,542.72 : x
  2. Step 2: Convert to fraction form
    437,149/655,285.74 = 170,542.72/x
  3. Step 3: Cross multiply
    437,149x = 655,285.74 × 170,542.72
  4. Step 4: Simplify right side
    437,149x = 111,754,212,476.81
  5. Step 5: Solve for x
    x = 111,754,212,476.81/437,149
  6. Step 6: Final answer
    x = 255,643.30

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1.5x scale

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.