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Finding the Fourth Proportional to 404,490.16, 558,192.63 and 223,203.66

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Solution

The fourth proportional to 404,490.16, 558,192.63 and 223,203.66 is: 308,018.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,490.16 : 558,192.63 = 223,203.66 : x
  2. Step 2: Convert to fraction form
    404,490.16/558,192.63 = 223,203.66/x
  3. Step 3: Cross multiply
    404,490.16x = 558,192.63 × 223,203.66
  4. Step 4: Simplify right side
    404,490.16x = 124,590,638,001.03
  5. Step 5: Solve for x
    x = 124,590,638,001.03/404,490.16
  6. Step 6: Final answer
    x = 308,018.96

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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.