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Finding the Fourth Proportional to 346,081.20, 519,121.80 and 251,602.80

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Solution

The fourth proportional to 346,081.20, 519,121.80 and 251,602.80 is: 377,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,081.20 : 519,121.80 = 251,602.80 : x
  2. Step 2: Convert to fraction form
    346,081.20/519,121.80 = 251,602.80/x
  3. Step 3: Cross multiply
    346,081.20x = 519,121.80 × 251,602.80
  4. Step 4: Simplify right side
    346,081.20x = 130,612,498,421.04
  5. Step 5: Solve for x
    x = 130,612,498,421.04/346,081.20
  6. Step 6: Final answer
    x = 377,404.20

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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.