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Finding the Fourth Proportional to 418,208.99, 577,133.66 and 227,225.57

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Solution

The fourth proportional to 418,208.99, 577,133.66 and 227,225.57 is: 313,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,208.99 : 577,133.66 = 227,225.57 : x
  2. Step 2: Convert to fraction form
    418,208.99/577,133.66 = 227,225.57/x
  3. Step 3: Cross multiply
    418,208.99x = 577,133.66 × 227,225.57
  4. Step 4: Simplify right side
    418,208.99x = 131,139,523,723.56
  5. Step 5: Solve for x
    x = 131,139,523,723.56/418,208.99
  6. Step 6: Final answer
    x = 313,574.14

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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.