Home / 284,255.40-425,864.70-231,378.60

Finding the Fourth Proportional to 284,255.40, 425,864.70 and 231,378.60

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Solution

The fourth proportional to 284,255.40, 425,864.70 and 231,378.60 is: 346,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,255.40 : 425,864.70 = 231,378.60 : x
  2. Step 2: Convert to fraction form
    284,255.40/425,864.70 = 231,378.60/x
  3. Step 3: Cross multiply
    284,255.40x = 425,864.70 × 231,378.60
  4. Step 4: Simplify right side
    284,255.40x = 98,535,978,075.42
  5. Step 5: Solve for x
    x = 98,535,978,075.42/284,255.40
  6. Step 6: Final answer
    x = 346,645.93

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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.