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Finding the Fourth Proportional to 353,423.70, 530,135.55 and 273,707.55

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Solution

The fourth proportional to 353,423.70, 530,135.55 and 273,707.55 is: 410,561.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,423.70 : 530,135.55 = 273,707.55 : x
  2. Step 2: Convert to fraction form
    353,423.70/530,135.55 = 273,707.55/x
  3. Step 3: Cross multiply
    353,423.70x = 530,135.55 × 273,707.55
  4. Step 4: Simplify right side
    353,423.70x = 145,102,102,558.40
  5. Step 5: Solve for x
    x = 145,102,102,558.40/353,423.70
  6. Step 6: Final answer
    x = 410,561.33

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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.