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Finding the Fourth Proportional to 355,780.72, 533,671.08 and 168,690.16

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Solution

The fourth proportional to 355,780.72, 533,671.08 and 168,690.16 is: 253,035.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,780.72 : 533,671.08 = 168,690.16 : x
  2. Step 2: Convert to fraction form
    355,780.72/533,671.08 = 168,690.16/x
  3. Step 3: Cross multiply
    355,780.72x = 533,671.08 × 168,690.16
  4. Step 4: Simplify right side
    355,780.72x = 90,025,059,872.57
  5. Step 5: Solve for x
    x = 90,025,059,872.57/355,780.72
  6. Step 6: Final answer
    x = 253,035.24

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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.