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Finding the Fourth Proportional to 400,851.49, 553,174.93 and 219,574.71

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Solution

The fourth proportional to 400,851.49, 553,174.93 and 219,574.71 is: 303,013.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,851.49 : 553,174.93 = 219,574.71 : x
  2. Step 2: Convert to fraction form
    400,851.49/553,174.93 = 219,574.71/x
  3. Step 3: Cross multiply
    400,851.49x = 553,174.93 × 219,574.71
  4. Step 4: Simplify right side
    400,851.49x = 121,463,224,834.02
  5. Step 5: Solve for x
    x = 121,463,224,834.02/400,851.49
  6. Step 6: Final answer
    x = 303,013.03

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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.