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Finding the Fourth Proportional to 339,334.80, 508,678.20 and 126,045.60

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Solution

The fourth proportional to 339,334.80, 508,678.20 and 126,045.60 is: 188,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,334.80 : 508,678.20 = 126,045.60 : x
  2. Step 2: Convert to fraction form
    339,334.80/508,678.20 = 126,045.60/x
  3. Step 3: Cross multiply
    339,334.80x = 508,678.20 × 126,045.60
  4. Step 4: Simplify right side
    339,334.80x = 64,116,648,925.92
  5. Step 5: Solve for x
    x = 64,116,648,925.92/339,334.80
  6. Step 6: Final answer
    x = 188,948.05

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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.