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Finding the Fourth Proportional to 418,354.65, 577,333.89 and 227,368.05

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Solution

The fourth proportional to 418,354.65, 577,333.89 and 227,368.05 is: 313,770.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,354.65 : 577,333.89 = 227,368.05 : x
  2. Step 2: Convert to fraction form
    418,354.65/577,333.89 = 227,368.05/x
  3. Step 3: Cross multiply
    418,354.65x = 577,333.89 × 227,368.05
  4. Step 4: Simplify right side
    418,354.65x = 131,267,280,768.22
  5. Step 5: Solve for x
    x = 131,267,280,768.22/418,354.65
  6. Step 6: Final answer
    x = 313,770.34

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1.5x scale

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.