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Finding the Fourth Proportional to 418,485.55, 577,503.24 and 227,503.75

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Solution

The fourth proportional to 418,485.55, 577,503.24 and 227,503.75 is: 313,951.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,485.55 : 577,503.24 = 227,503.75 : x
  2. Step 2: Convert to fraction form
    418,485.55/577,503.24 = 227,503.75/x
  3. Step 3: Cross multiply
    418,485.55x = 577,503.24 × 227,503.75
  4. Step 4: Simplify right side
    418,485.55x = 131,384,152,737.15
  5. Step 5: Solve for x
    x = 131,384,152,737.15/418,485.55
  6. Step 6: Final answer
    x = 313,951.47

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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.