Home / 349,890.36-482,914.62-219,128.64

Finding the Fourth Proportional to 349,890.36, 482,914.62 and 219,128.64

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Solution

The fourth proportional to 349,890.36, 482,914.62 and 219,128.64 is: 302,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,890.36 : 482,914.62 = 219,128.64 : x
  2. Step 2: Convert to fraction form
    349,890.36/482,914.62 = 219,128.64/x
  3. Step 3: Cross multiply
    349,890.36x = 482,914.62 × 219,128.64
  4. Step 4: Simplify right side
    349,890.36x = 105,820,423,916.72
  5. Step 5: Solve for x
    x = 105,820,423,916.72/349,890.36
  6. Step 6: Final answer
    x = 302,438.81

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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.