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Finding the Fourth Proportional to 371,574.33, 512,772.71 and 210,429.42

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Solution

The fourth proportional to 371,574.33, 512,772.71 and 210,429.42 is: 290,392.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,574.33 : 512,772.71 = 210,429.42 : x
  2. Step 2: Convert to fraction form
    371,574.33/512,772.71 = 210,429.42/x
  3. Step 3: Cross multiply
    371,574.33x = 512,772.71 × 210,429.42
  4. Step 4: Simplify right side
    371,574.33x = 107,902,462,904.98
  5. Step 5: Solve for x
    x = 107,902,462,904.98/371,574.33
  6. Step 6: Final answer
    x = 290,392.67

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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.