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Finding the Fourth Proportional to 354,020.80, 530,880 and 164,364.16

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Solution

The fourth proportional to 354,020.80, 530,880 and 164,364.16 is: 246,476.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,020.80 : 530,880 = 164,364.16 : x
  2. Step 2: Convert to fraction form
    354,020.80/530,880 = 164,364.16/x
  3. Step 3: Cross multiply
    354,020.80x = 530,880 × 164,364.16
  4. Step 4: Simplify right side
    354,020.80x = 87,257,645,260.80
  5. Step 5: Solve for x
    x = 87,257,645,260.80/354,020.80
  6. Step 6: Final answer
    x = 246,476.04

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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.