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Finding the Fourth Proportional to 355,568.79, 533,353.70 and 145,206.72

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Solution

The fourth proportional to 355,568.79, 533,353.70 and 145,206.72 is: 217,810.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,568.79 : 533,353.70 = 145,206.72 : x
  2. Step 2: Convert to fraction form
    355,568.79/533,353.70 = 145,206.72/x
  3. Step 3: Cross multiply
    355,568.79x = 533,353.70 × 145,206.72
  4. Step 4: Simplify right side
    355,568.79x = 77,446,540,650.83
  5. Step 5: Solve for x
    x = 77,446,540,650.83/355,568.79
  6. Step 6: Final answer
    x = 217,810.29

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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.