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Finding the Fourth Proportional to 403,991.50, 557,510.03 and 222,699.53

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Solution

The fourth proportional to 403,991.50, 557,510.03 and 222,699.53 is: 307,326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,991.50 : 557,510.03 = 222,699.53 : x
  2. Step 2: Convert to fraction form
    403,991.50/557,510.03 = 222,699.53/x
  3. Step 3: Cross multiply
    403,991.50x = 557,510.03 × 222,699.53
  4. Step 4: Simplify right side
    403,991.50x = 124,157,220,537.79
  5. Step 5: Solve for x
    x = 124,157,220,537.79/403,991.50
  6. Step 6: Final answer
    x = 307,326.32

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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.