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Finding the Fourth Proportional to 219,539.57, 302,964.92 and 118,937.57

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Solution

The fourth proportional to 219,539.57, 302,964.92 and 118,937.57 is: 164,134.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,539.57 : 302,964.92 = 118,937.57 : x
  2. Step 2: Convert to fraction form
    219,539.57/302,964.92 = 118,937.57/x
  3. Step 3: Cross multiply
    219,539.57x = 302,964.92 × 118,937.57
  4. Step 4: Simplify right side
    219,539.57x = 36,033,910,785.36
  5. Step 5: Solve for x
    x = 36,033,910,785.36/219,539.57
  6. Step 6: Final answer
    x = 164,134.01

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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.