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Finding the Fourth Proportional to 418,563.96, 577,615.32 and 227,577.48

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Solution

The fourth proportional to 418,563.96, 577,615.32 and 227,577.48 is: 314,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,563.96 : 577,615.32 = 227,577.48 : x
  2. Step 2: Convert to fraction form
    418,563.96/577,615.32 = 227,577.48/x
  3. Step 3: Cross multiply
    418,563.96x = 577,615.32 × 227,577.48
  4. Step 4: Simplify right side
    418,563.96x = 131,452,238,934.99
  5. Step 5: Solve for x
    x = 131,452,238,934.99/418,563.96
  6. Step 6: Final answer
    x = 314,055.32

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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.