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Finding the Fourth Proportional to 170,771.68, 256,169.80 and 65,590.64

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Solution

The fourth proportional to 170,771.68, 256,169.80 and 65,590.64 is: 98,390.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,771.68 : 256,169.80 = 65,590.64 : x
  2. Step 2: Convert to fraction form
    170,771.68/256,169.80 = 65,590.64/x
  3. Step 3: Cross multiply
    170,771.68x = 256,169.80 × 65,590.64
  4. Step 4: Simplify right side
    170,771.68x = 16,802,341,130.67
  5. Step 5: Solve for x
    x = 16,802,341,130.67/170,771.68
  6. Step 6: Final answer
    x = 98,390.68

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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.