Home / 397,035.72-547,909.68-215,749.68

Finding the Fourth Proportional to 397,035.72, 547,909.68 and 215,749.68

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Solution

The fourth proportional to 397,035.72, 547,909.68 and 215,749.68 is: 297,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,035.72 : 547,909.68 = 215,749.68 : x
  2. Step 2: Convert to fraction form
    397,035.72/547,909.68 = 215,749.68/x
  3. Step 3: Cross multiply
    397,035.72x = 547,909.68 × 215,749.68
  4. Step 4: Simplify right side
    397,035.72x = 118,211,338,128.90
  5. Step 5: Solve for x
    x = 118,211,338,128.90/397,035.72
  6. Step 6: Final answer
    x = 297,734.77

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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.