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Finding the Fourth Proportional to 223,210.60, 334,815.90 and 129,898.60

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Solution

The fourth proportional to 223,210.60, 334,815.90 and 129,898.60 is: 194,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,210.60 : 334,815.90 = 129,898.60 : x
  2. Step 2: Convert to fraction form
    223,210.60/334,815.90 = 129,898.60/x
  3. Step 3: Cross multiply
    223,210.60x = 334,815.90 × 129,898.60
  4. Step 4: Simplify right side
    223,210.60x = 43,492,116,667.74
  5. Step 5: Solve for x
    x = 43,492,116,667.74/223,210.60
  6. Step 6: Final answer
    x = 194,847.90

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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.