Home / 223,463.51-308,129.16-209,291.75

Finding the Fourth Proportional to 223,463.51, 308,129.16 and 209,291.75

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Solution

The fourth proportional to 223,463.51, 308,129.16 and 209,291.75 is: 288,588.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,463.51 : 308,129.16 = 209,291.75 : x
  2. Step 2: Convert to fraction form
    223,463.51/308,129.16 = 209,291.75/x
  3. Step 3: Cross multiply
    223,463.51x = 308,129.16 × 209,291.75
  4. Step 4: Simplify right side
    223,463.51x = 64,488,891,522.11
  5. Step 5: Solve for x
    x = 64,488,891,522.11/223,463.51
  6. Step 6: Final answer
    x = 288,588.02

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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.