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Finding the Fourth Proportional to 418,484.55, 577,501.86 and 227,502.75

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Solution

The fourth proportional to 418,484.55, 577,501.86 and 227,502.75 is: 313,950.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,484.55 : 577,501.86 = 227,502.75 : x
  2. Step 2: Convert to fraction form
    418,484.55/577,501.86 = 227,502.75/x
  3. Step 3: Cross multiply
    418,484.55x = 577,501.86 × 227,502.75
  4. Step 4: Simplify right side
    418,484.55x = 131,383,261,280.12
  5. Step 5: Solve for x
    x = 131,383,261,280.12/418,484.55
  6. Step 6: Final answer
    x = 313,950.09

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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.