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Finding the Fourth Proportional to 223,225.40, 334,410.42 and 215,721.56

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Solution

The fourth proportional to 223,225.40, 334,410.42 and 215,721.56 is: 323,169.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,225.40 : 334,410.42 = 215,721.56 : x
  2. Step 2: Convert to fraction form
    223,225.40/334,410.42 = 215,721.56/x
  3. Step 3: Cross multiply
    223,225.40x = 334,410.42 × 215,721.56
  4. Step 4: Simplify right side
    223,225.40x = 72,139,537,482.66
  5. Step 5: Solve for x
    x = 72,139,537,482.66/223,225.40
  6. Step 6: Final answer
    x = 323,169.04

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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.