Home / 320,440.10-480,004.05-162,757.40

Finding the Fourth Proportional to 320,440.10, 480,004.05 and 162,757.40

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Solution

The fourth proportional to 320,440.10, 480,004.05 and 162,757.40 is: 243,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,440.10 : 480,004.05 = 162,757.40 : x
  2. Step 2: Convert to fraction form
    320,440.10/480,004.05 = 162,757.40/x
  3. Step 3: Cross multiply
    320,440.10x = 480,004.05 × 162,757.40
  4. Step 4: Simplify right side
    320,440.10x = 78,124,211,167.47
  5. Step 5: Solve for x
    x = 78,124,211,167.47/320,440.10
  6. Step 6: Final answer
    x = 243,802.85

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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.