Home / 418,215.55-577,138.08-227,228.89

Finding the Fourth Proportional to 418,215.55, 577,138.08 and 227,228.89

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Solution

The fourth proportional to 418,215.55, 577,138.08 and 227,228.89 is: 313,576.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,215.55 : 577,138.08 = 227,228.89 : x
  2. Step 2: Convert to fraction form
    418,215.55/577,138.08 = 227,228.89/x
  3. Step 3: Cross multiply
    418,215.55x = 577,138.08 × 227,228.89
  4. Step 4: Simplify right side
    418,215.55x = 131,142,445,295.13
  5. Step 5: Solve for x
    x = 131,142,445,295.13/418,215.55
  6. Step 6: Final answer
    x = 313,576.21

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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.