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Finding the Fourth Proportional to 259,510.80, 389,266.20 and 152,785.20

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Solution

The fourth proportional to 259,510.80, 389,266.20 and 152,785.20 is: 229,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,510.80 : 389,266.20 = 152,785.20 : x
  2. Step 2: Convert to fraction form
    259,510.80/389,266.20 = 152,785.20/x
  3. Step 3: Cross multiply
    259,510.80x = 389,266.20 × 152,785.20
  4. Step 4: Simplify right side
    259,510.80x = 59,474,114,220.24
  5. Step 5: Solve for x
    x = 59,474,114,220.24/259,510.80
  6. Step 6: Final answer
    x = 229,177.80

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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.