Home / 372,439.27-514,021.55-219,428.54

Finding the Fourth Proportional to 372,439.27, 514,021.55 and 219,428.54

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Solution

The fourth proportional to 372,439.27, 514,021.55 and 219,428.54 is: 302,844.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,439.27 : 514,021.55 = 219,428.54 : x
  2. Step 2: Convert to fraction form
    372,439.27/514,021.55 = 219,428.54/x
  3. Step 3: Cross multiply
    372,439.27x = 514,021.55 × 219,428.54
  4. Step 4: Simplify right side
    372,439.27x = 112,790,999,396.74
  5. Step 5: Solve for x
    x = 112,790,999,396.74/372,439.27
  6. Step 6: Final answer
    x = 302,844.01

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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.