Home / 418,351.15-577,329.06-227,364.55

Finding the Fourth Proportional to 418,351.15, 577,329.06 and 227,364.55

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Solution

The fourth proportional to 418,351.15, 577,329.06 and 227,364.55 is: 313,765.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,351.15 : 577,329.06 = 227,364.55 : x
  2. Step 2: Convert to fraction form
    418,351.15/577,329.06 = 227,364.55/x
  3. Step 3: Cross multiply
    418,351.15x = 577,329.06 × 227,364.55
  4. Step 4: Simplify right side
    418,351.15x = 131,264,161,928.82
  5. Step 5: Solve for x
    x = 131,264,161,928.82/418,351.15
  6. Step 6: Final answer
    x = 313,765.51

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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.