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Finding the Fourth Proportional to 230,946.30, 346,419.45 and 220,120.65

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Solution

The fourth proportional to 230,946.30, 346,419.45 and 220,120.65 is: 330,180.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,946.30 : 346,419.45 = 220,120.65 : x
  2. Step 2: Convert to fraction form
    230,946.30/346,419.45 = 220,120.65/x
  3. Step 3: Cross multiply
    230,946.30x = 346,419.45 × 220,120.65
  4. Step 4: Simplify right side
    230,946.30x = 76,254,074,506.64
  5. Step 5: Solve for x
    x = 76,254,074,506.64/230,946.30
  6. Step 6: Final answer
    x = 330,180.98

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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.