Home / 258,882.05-357,256.50-145,704.80

Finding the Fourth Proportional to 258,882.05, 357,256.50 and 145,704.80

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Solution

The fourth proportional to 258,882.05, 357,256.50 and 145,704.80 is: 201,072.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,882.05 : 357,256.50 = 145,704.80 : x
  2. Step 2: Convert to fraction form
    258,882.05/357,256.50 = 145,704.80/x
  3. Step 3: Cross multiply
    258,882.05x = 357,256.50 × 145,704.80
  4. Step 4: Simplify right side
    258,882.05x = 52,053,986,881.20
  5. Step 5: Solve for x
    x = 52,053,986,881.20/258,882.05
  6. Step 6: Final answer
    x = 201,072.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.