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Finding the Fourth Proportional to 217,041.96, 325,495.98 and 76,768.32

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Solution

The fourth proportional to 217,041.96, 325,495.98 and 76,768.32 is: 115,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,041.96 : 325,495.98 = 76,768.32 : x
  2. Step 2: Convert to fraction form
    217,041.96/325,495.98 = 76,768.32/x
  3. Step 3: Cross multiply
    217,041.96x = 325,495.98 × 76,768.32
  4. Step 4: Simplify right side
    217,041.96x = 24,987,779,551.35
  5. Step 5: Solve for x
    x = 24,987,779,551.35/217,041.96
  6. Step 6: Final answer
    x = 115,128.80

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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.