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Finding the Fourth Proportional to 362,220.40, 542,812.20 and 251,282.80

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Solution

The fourth proportional to 362,220.40, 542,812.20 and 251,282.80 is: 376,564.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,220.40 : 542,812.20 = 251,282.80 : x
  2. Step 2: Convert to fraction form
    362,220.40/542,812.20 = 251,282.80/x
  3. Step 3: Cross multiply
    362,220.40x = 542,812.20 × 251,282.80
  4. Step 4: Simplify right side
    362,220.40x = 136,399,369,490.16
  5. Step 5: Solve for x
    x = 136,399,369,490.16/362,220.40
  6. Step 6: Final answer
    x = 376,564.57

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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.