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Finding the Fourth Proportional to 449,154.64, 619,842.76 and 245,214.14

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Solution

The fourth proportional to 449,154.64, 619,842.76 and 245,214.14 is: 338,400.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,154.64 : 619,842.76 = 245,214.14 : x
  2. Step 2: Convert to fraction form
    449,154.64/619,842.76 = 245,214.14/x
  3. Step 3: Cross multiply
    449,154.64x = 619,842.76 × 245,214.14
  4. Step 4: Simplify right side
    449,154.64x = 151,994,209,328.63
  5. Step 5: Solve for x
    x = 151,994,209,328.63/449,154.64
  6. Step 6: Final answer
    x = 338,400.62

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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.