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Finding the Fourth Proportional to 280,737.63, 421,110.09 and 93,749.13

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Solution

The fourth proportional to 280,737.63, 421,110.09 and 93,749.13 is: 140,624.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,737.63 : 421,110.09 = 93,749.13 : x
  2. Step 2: Convert to fraction form
    280,737.63/421,110.09 = 93,749.13/x
  3. Step 3: Cross multiply
    280,737.63x = 421,110.09 × 93,749.13
  4. Step 4: Simplify right side
    280,737.63x = 39,478,704,571.72
  5. Step 5: Solve for x
    x = 39,478,704,571.72/280,737.63
  6. Step 6: Final answer
    x = 140,624.91

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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.