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Finding the Fourth Proportional to 220,381.02, 330,571.53 and 145,483.61

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Solution

The fourth proportional to 220,381.02, 330,571.53 and 145,483.61 is: 218,225.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,381.02 : 330,571.53 = 145,483.61 : x
  2. Step 2: Convert to fraction form
    220,381.02/330,571.53 = 145,483.61/x
  3. Step 3: Cross multiply
    220,381.02x = 330,571.53 × 145,483.61
  4. Step 4: Simplify right side
    220,381.02x = 48,092,737,894.77
  5. Step 5: Solve for x
    x = 48,092,737,894.77/220,381.02
  6. Step 6: Final answer
    x = 218,225.41

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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.