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Finding the Fourth Proportional to 371,794.77, 513,075.06 and 210,649.46

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Solution

The fourth proportional to 371,794.77, 513,075.06 and 210,649.46 is: 290,695.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,794.77 : 513,075.06 = 210,649.46 : x
  2. Step 2: Convert to fraction form
    371,794.77/513,075.06 = 210,649.46/x
  3. Step 3: Cross multiply
    371,794.77x = 513,075.06 × 210,649.46
  4. Step 4: Simplify right side
    371,794.77x = 108,078,981,763.09
  5. Step 5: Solve for x
    x = 108,078,981,763.09/371,794.77
  6. Step 6: Final answer
    x = 290,695.27

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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.