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Finding the Fourth Proportional to 341,324.80, 510,820.80 and 299,334.40

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Solution

The fourth proportional to 341,324.80, 510,820.80 and 299,334.40 is: 447,978.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,324.80 : 510,820.80 = 299,334.40 : x
  2. Step 2: Convert to fraction form
    341,324.80/510,820.80 = 299,334.40/x
  3. Step 3: Cross multiply
    341,324.80x = 510,820.80 × 299,334.40
  4. Step 4: Simplify right side
    341,324.80x = 152,906,237,675.52
  5. Step 5: Solve for x
    x = 152,906,237,675.52/341,324.80
  6. Step 6: Final answer
    x = 447,978.69

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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.