Home / 371,034.74-512,028.09-209,886.36

Finding the Fourth Proportional to 371,034.74, 512,028.09 and 209,886.36

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Solution

The fourth proportional to 371,034.74, 512,028.09 and 209,886.36 is: 289,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,034.74 : 512,028.09 = 209,886.36 : x
  2. Step 2: Convert to fraction form
    371,034.74/512,028.09 = 209,886.36/x
  3. Step 3: Cross multiply
    371,034.74x = 512,028.09 × 209,886.36
  4. Step 4: Simplify right side
    371,034.74x = 107,467,712,027.85
  5. Step 5: Solve for x
    x = 107,467,712,027.85/371,034.74
  6. Step 6: Final answer
    x = 289,643.26

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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.