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Finding the Fourth Proportional to 418,242.61, 577,176.60 and 227,256.76

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Solution

The fourth proportional to 418,242.61, 577,176.60 and 227,256.76 is: 313,615.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,242.61 : 577,176.60 = 227,256.76 : x
  2. Step 2: Convert to fraction form
    418,242.61/577,176.60 = 227,256.76/x
  3. Step 3: Cross multiply
    418,242.61x = 577,176.60 × 227,256.76
  4. Step 4: Simplify right side
    418,242.61x = 131,167,284,063.82
  5. Step 5: Solve for x
    x = 131,167,284,063.82/418,242.61
  6. Step 6: Final answer
    x = 313,615.31

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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.