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Finding the Fourth Proportional to 220,510.44, 330,348.29 and 130,283.32

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Solution

The fourth proportional to 220,510.44, 330,348.29 and 130,283.32 is: 195,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,510.44 : 330,348.29 = 130,283.32 : x
  2. Step 2: Convert to fraction form
    220,510.44/330,348.29 = 130,283.32/x
  3. Step 3: Cross multiply
    220,510.44x = 330,348.29 × 130,283.32
  4. Step 4: Simplify right side
    220,510.44x = 43,038,871,977.52
  5. Step 5: Solve for x
    x = 43,038,871,977.52/220,510.44
  6. Step 6: Final answer
    x = 195,178.39

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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.