Home / 376,320.19-519,321.65-212,973.73

Finding the Fourth Proportional to 376,320.19, 519,321.65 and 212,973.73

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Solution

The fourth proportional to 376,320.19, 519,321.65 and 212,973.73 is: 293,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,320.19 : 519,321.65 = 212,973.73 : x
  2. Step 2: Convert to fraction form
    376,320.19/519,321.65 = 212,973.73/x
  3. Step 3: Cross multiply
    376,320.19x = 519,321.65 × 212,973.73
  4. Step 4: Simplify right side
    376,320.19x = 110,601,868,104.39
  5. Step 5: Solve for x
    x = 110,601,868,104.39/376,320.19
  6. Step 6: Final answer
    x = 293,903.63

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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.