Home / 331,336.20-497,004.30-309,028.80

Finding the Fourth Proportional to 331,336.20, 497,004.30 and 309,028.80

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Solution

The fourth proportional to 331,336.20, 497,004.30 and 309,028.80 is: 463,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,336.20 : 497,004.30 = 309,028.80 : x
  2. Step 2: Convert to fraction form
    331,336.20/497,004.30 = 309,028.80/x
  3. Step 3: Cross multiply
    331,336.20x = 497,004.30 × 309,028.80
  4. Step 4: Simplify right side
    331,336.20x = 153,588,642,423.84
  5. Step 5: Solve for x
    x = 153,588,642,423.84/331,336.20
  6. Step 6: Final answer
    x = 463,543.20

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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.