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Finding the Fourth Proportional to 353,996.20, 530,216.70 and 307,340.20

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Solution

The fourth proportional to 353,996.20, 530,216.70 and 307,340.20 is: 460,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,996.20 : 530,216.70 = 307,340.20 : x
  2. Step 2: Convert to fraction form
    353,996.20/530,216.70 = 307,340.20/x
  3. Step 3: Cross multiply
    353,996.20x = 530,216.70 × 307,340.20
  4. Step 4: Simplify right side
    353,996.20x = 162,956,906,621.34
  5. Step 5: Solve for x
    x = 162,956,906,621.34/353,996.20
  6. Step 6: Final answer
    x = 460,335.19

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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.