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Finding the Fourth Proportional to 238,510.90, 357,544 and 80,628.94

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Solution

The fourth proportional to 238,510.90, 357,544 and 80,628.94 is: 120,868.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,510.90 : 357,544 = 80,628.94 : x
  2. Step 2: Convert to fraction form
    238,510.90/357,544 = 80,628.94/x
  3. Step 3: Cross multiply
    238,510.90x = 357,544 × 80,628.94
  4. Step 4: Simplify right side
    238,510.90x = 28,828,393,723.36
  5. Step 5: Solve for x
    x = 28,828,393,723.36/238,510.90
  6. Step 6: Final answer
    x = 120,868.24

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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.