Home / 346,276.20-519,306.30-135,978.60

Finding the Fourth Proportional to 346,276.20, 519,306.30 and 135,978.60

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Solution

The fourth proportional to 346,276.20, 519,306.30 and 135,978.60 is: 203,925.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,276.20 : 519,306.30 = 135,978.60 : x
  2. Step 2: Convert to fraction form
    346,276.20/519,306.30 = 135,978.60/x
  3. Step 3: Cross multiply
    346,276.20x = 519,306.30 × 135,978.60
  4. Step 4: Simplify right side
    346,276.20x = 70,614,543,645.18
  5. Step 5: Solve for x
    x = 70,614,543,645.18/346,276.20
  6. Step 6: Final answer
    x = 203,925.49

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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.