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Finding the Fourth Proportional to 261,288.60, 360,655.02 and 170,658.42

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Solution

The fourth proportional to 261,288.60, 360,655.02 and 170,658.42 is: 235,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,288.60 : 360,655.02 = 170,658.42 : x
  2. Step 2: Convert to fraction form
    261,288.60/360,655.02 = 170,658.42/x
  3. Step 3: Cross multiply
    261,288.60x = 360,655.02 × 170,658.42
  4. Step 4: Simplify right side
    261,288.60x = 61,548,815,878.27
  5. Step 5: Solve for x
    x = 61,548,815,878.27/261,288.60
  6. Step 6: Final answer
    x = 235,558.75

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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.