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Finding the Fourth Proportional to 291,560.52, 402,360.05 and 162,512.20

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Solution

The fourth proportional to 291,560.52, 402,360.05 and 162,512.20 is: 224,270.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,560.52 : 402,360.05 = 162,512.20 : x
  2. Step 2: Convert to fraction form
    291,560.52/402,360.05 = 162,512.20/x
  3. Step 3: Cross multiply
    291,560.52x = 402,360.05 × 162,512.20
  4. Step 4: Simplify right side
    291,560.52x = 65,388,416,317.99
  5. Step 5: Solve for x
    x = 65,388,416,317.99/291,560.52
  6. Step 6: Final answer
    x = 224,270.48

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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.