Home / 380,259.38-570,949.79-212,108.24

Finding the Fourth Proportional to 380,259.38, 570,949.79 and 212,108.24

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Solution

The fourth proportional to 380,259.38, 570,949.79 and 212,108.24 is: 318,475.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,259.38 : 570,949.79 = 212,108.24 : x
  2. Step 2: Convert to fraction form
    380,259.38/570,949.79 = 212,108.24/x
  3. Step 3: Cross multiply
    380,259.38x = 570,949.79 × 212,108.24
  4. Step 4: Simplify right side
    380,259.38x = 121,103,151,169.98
  5. Step 5: Solve for x
    x = 121,103,151,169.98/380,259.38
  6. Step 6: Final answer
    x = 318,475.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.