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Finding the Fourth Proportional to 223,421.70, 335,132.55 and 213,053.70

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Solution

The fourth proportional to 223,421.70, 335,132.55 and 213,053.70 is: 319,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,421.70 : 335,132.55 = 213,053.70 : x
  2. Step 2: Convert to fraction form
    223,421.70/335,132.55 = 213,053.70/x
  3. Step 3: Cross multiply
    223,421.70x = 335,132.55 × 213,053.70
  4. Step 4: Simplify right side
    223,421.70x = 71,401,229,767.94
  5. Step 5: Solve for x
    x = 71,401,229,767.94/223,421.70
  6. Step 6: Final answer
    x = 319,580.55

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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.