Home / 418,328.78-577,298.19-227,342.18

Finding the Fourth Proportional to 418,328.78, 577,298.19 and 227,342.18

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Solution

The fourth proportional to 418,328.78, 577,298.19 and 227,342.18 is: 313,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,328.78 : 577,298.19 = 227,342.18 : x
  2. Step 2: Convert to fraction form
    418,328.78/577,298.19 = 227,342.18/x
  3. Step 3: Cross multiply
    418,328.78x = 577,298.19 × 227,342.18
  4. Step 4: Simplify right side
    418,328.78x = 131,244,226,138.16
  5. Step 5: Solve for x
    x = 131,244,226,138.16/418,328.78
  6. Step 6: Final answer
    x = 313,734.64

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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.