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Finding the Fourth Proportional to 612,220.50, 918,340.09 and 233,162.21

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Solution

The fourth proportional to 612,220.50, 918,340.09 and 233,162.21 is: 349,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,220.50 : 918,340.09 = 233,162.21 : x
  2. Step 2: Convert to fraction form
    612,220.50/918,340.09 = 233,162.21/x
  3. Step 3: Cross multiply
    612,220.50x = 918,340.09 × 233,162.21
  4. Step 4: Simplify right side
    612,220.50x = 214,122,206,628.94
  5. Step 5: Solve for x
    x = 214,122,206,628.94/612,220.50
  6. Step 6: Final answer
    x = 349,746.87

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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.