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Finding the Fourth Proportional to 296,887.20, 445,609.20 and 156,746.40

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Solution

The fourth proportional to 296,887.20, 445,609.20 and 156,746.40 is: 235,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,887.20 : 445,609.20 = 156,746.40 : x
  2. Step 2: Convert to fraction form
    296,887.20/445,609.20 = 156,746.40/x
  3. Step 3: Cross multiply
    296,887.20x = 445,609.20 × 156,746.40
  4. Step 4: Simplify right side
    296,887.20x = 69,847,637,906.88
  5. Step 5: Solve for x
    x = 69,847,637,906.88/296,887.20
  6. Step 6: Final answer
    x = 235,266.59

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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.