Home / 331,412.18-457,203.30-223,943

Finding the Fourth Proportional to 331,412.18, 457,203.30 and 223,943

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Solution

The fourth proportional to 331,412.18, 457,203.30 and 223,943 is: 308,943.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,412.18 : 457,203.30 = 223,943 : x
  2. Step 2: Convert to fraction form
    331,412.18/457,203.30 = 223,943/x
  3. Step 3: Cross multiply
    331,412.18x = 457,203.30 × 223,943
  4. Step 4: Simplify right side
    331,412.18x = 102,387,478,611.90
  5. Step 5: Solve for x
    x = 102,387,478,611.90/331,412.18
  6. Step 6: Final answer
    x = 308,943.02

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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.