Home / 284,862.40-426,775.20-231,985.60

Finding the Fourth Proportional to 284,862.40, 426,775.20 and 231,985.60

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Solution

The fourth proportional to 284,862.40, 426,775.20 and 231,985.60 is: 347,556.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,862.40 : 426,775.20 = 231,985.60 : x
  2. Step 2: Convert to fraction form
    284,862.40/426,775.20 = 231,985.60/x
  3. Step 3: Cross multiply
    284,862.40x = 426,775.20 × 231,985.60
  4. Step 4: Simplify right side
    284,862.40x = 99,005,700,837.12
  5. Step 5: Solve for x
    x = 99,005,700,837.12/284,862.40
  6. Step 6: Final answer
    x = 347,556.23

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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.