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Finding the Fourth Proportional to 213,980.46, 321,001.98 and 64,232.58

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Solution

The fourth proportional to 213,980.46, 321,001.98 and 64,232.58 is: 96,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,980.46 : 321,001.98 = 64,232.58 : x
  2. Step 2: Convert to fraction form
    213,980.46/321,001.98 = 64,232.58/x
  3. Step 3: Cross multiply
    213,980.46x = 321,001.98 × 64,232.58
  4. Step 4: Simplify right side
    213,980.46x = 20,618,785,360.51
  5. Step 5: Solve for x
    x = 20,618,785,360.51/213,980.46
  6. Step 6: Final answer
    x = 96,358.26

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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.