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Finding the Fourth Proportional to 223,607.40, 334,827.90 and 213,109.80

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Solution

The fourth proportional to 223,607.40, 334,827.90 and 213,109.80 is: 319,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,607.40 : 334,827.90 = 213,109.80 : x
  2. Step 2: Convert to fraction form
    223,607.40/334,827.90 = 213,109.80/x
  3. Step 3: Cross multiply
    223,607.40x = 334,827.90 × 213,109.80
  4. Step 4: Simplify right side
    223,607.40x = 71,355,106,803.42
  5. Step 5: Solve for x
    x = 71,355,106,803.42/223,607.40
  6. Step 6: Final answer
    x = 319,108.88

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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.