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Finding the Fourth Proportional to 418,363.15, 577,345.62 and 227,376.55

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Solution

The fourth proportional to 418,363.15, 577,345.62 and 227,376.55 is: 313,782.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,363.15 : 577,345.62 = 227,376.55 : x
  2. Step 2: Convert to fraction form
    418,363.15/577,345.62 = 227,376.55/x
  3. Step 3: Cross multiply
    418,363.15x = 577,345.62 × 227,376.55
  4. Step 4: Simplify right side
    418,363.15x = 131,274,855,233.21
  5. Step 5: Solve for x
    x = 131,274,855,233.21/418,363.15
  6. Step 6: Final answer
    x = 313,782.07

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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.