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Finding the Fourth Proportional to 223,210.32, 308,045.32 and 122,609.36

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Solution

The fourth proportional to 223,210.32, 308,045.32 and 122,609.36 is: 169,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,210.32 : 308,045.32 = 122,609.36 : x
  2. Step 2: Convert to fraction form
    223,210.32/308,045.32 = 122,609.36/x
  3. Step 3: Cross multiply
    223,210.32x = 308,045.32 × 122,609.36
  4. Step 4: Simplify right side
    223,210.32x = 37,769,239,536.20
  5. Step 5: Solve for x
    x = 37,769,239,536.20/223,210.32
  6. Step 6: Final answer
    x = 169,209.20

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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.