Home / 379,026.12-523,054.56-209,259.03

Finding the Fourth Proportional to 379,026.12, 523,054.56 and 209,259.03

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Solution

The fourth proportional to 379,026.12, 523,054.56 and 209,259.03 is: 288,776.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,026.12 : 523,054.56 = 209,259.03 : x
  2. Step 2: Convert to fraction form
    379,026.12/523,054.56 = 209,259.03/x
  3. Step 3: Cross multiply
    379,026.12x = 523,054.56 × 209,259.03
  4. Step 4: Simplify right side
    379,026.12x = 109,453,889,862.68
  5. Step 5: Solve for x
    x = 109,453,889,862.68/379,026.12
  6. Step 6: Final answer
    x = 288,776.64

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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.