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Finding the Fourth Proportional to 418,354.66, 577,333.90 and 227,368.06

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Solution

The fourth proportional to 418,354.66, 577,333.90 and 227,368.06 is: 313,770.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,354.66 : 577,333.90 = 227,368.06 : x
  2. Step 2: Convert to fraction form
    418,354.66/577,333.90 = 227,368.06/x
  3. Step 3: Cross multiply
    418,354.66x = 577,333.90 × 227,368.06
  4. Step 4: Simplify right side
    418,354.66x = 131,267,288,815.23
  5. Step 5: Solve for x
    x = 131,267,288,815.23/418,354.66
  6. Step 6: Final answer
    x = 313,770.35

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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.