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Finding the Fourth Proportional to 259,169.70, 388,807.40 and 146,900.06

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Solution

The fourth proportional to 259,169.70, 388,807.40 and 146,900.06 is: 220,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,169.70 : 388,807.40 = 146,900.06 : x
  2. Step 2: Convert to fraction form
    259,169.70/388,807.40 = 146,900.06/x
  3. Step 3: Cross multiply
    259,169.70x = 388,807.40 × 146,900.06
  4. Step 4: Simplify right side
    259,169.70x = 57,115,828,444.41
  5. Step 5: Solve for x
    x = 57,115,828,444.41/259,169.70
  6. Step 6: Final answer
    x = 220,380.04

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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.