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Finding the Fourth Proportional to 400,851.68, 553,175.19 and 219,574.89

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Solution

The fourth proportional to 400,851.68, 553,175.19 and 219,574.89 is: 303,013.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,851.68 : 553,175.19 = 219,574.89 : x
  2. Step 2: Convert to fraction form
    400,851.68/553,175.19 = 219,574.89/x
  3. Step 3: Cross multiply
    400,851.68x = 553,175.19 × 219,574.89
  4. Step 4: Simplify right side
    400,851.68x = 121,463,381,494.98
  5. Step 5: Solve for x
    x = 121,463,381,494.98/400,851.68
  6. Step 6: Final answer
    x = 303,013.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.