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Finding the Fourth Proportional to 341,408.40, 512,112.60 and 307,582.80

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Solution

The fourth proportional to 341,408.40, 512,112.60 and 307,582.80 is: 461,374.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,408.40 : 512,112.60 = 307,582.80 : x
  2. Step 2: Convert to fraction form
    341,408.40/512,112.60 = 307,582.80/x
  3. Step 3: Cross multiply
    341,408.40x = 512,112.60 × 307,582.80
  4. Step 4: Simplify right side
    341,408.40x = 157,517,027,423.28
  5. Step 5: Solve for x
    x = 157,517,027,423.28/341,408.40
  6. Step 6: Final answer
    x = 461,374.20

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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.