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Finding the Fourth Proportional to 353,997.20, 530,218.20 and 307,341.20

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Solution

The fourth proportional to 353,997.20, 530,218.20 and 307,341.20 is: 460,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,997.20 : 530,218.20 = 307,341.20 : x
  2. Step 2: Convert to fraction form
    353,997.20/530,218.20 = 307,341.20/x
  3. Step 3: Cross multiply
    353,997.20x = 530,218.20 × 307,341.20
  4. Step 4: Simplify right side
    353,997.20x = 162,957,897,849.84
  5. Step 5: Solve for x
    x = 162,957,897,849.84/353,997.20
  6. Step 6: Final answer
    x = 460,336.69

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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.