Home / 348,317.70-521,785.35-200,400.90

Finding the Fourth Proportional to 348,317.70, 521,785.35 and 200,400.90

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Solution

The fourth proportional to 348,317.70, 521,785.35 and 200,400.90 is: 300,203.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,317.70 : 521,785.35 = 200,400.90 : x
  2. Step 2: Convert to fraction form
    348,317.70/521,785.35 = 200,400.90/x
  3. Step 3: Cross multiply
    348,317.70x = 521,785.35 × 200,400.90
  4. Step 4: Simplify right side
    348,317.70x = 104,566,253,746.82
  5. Step 5: Solve for x
    x = 104,566,253,746.82/348,317.70
  6. Step 6: Final answer
    x = 300,203.68

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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.