Home / 349,331.20-523,867.20-138,925.60

Finding the Fourth Proportional to 349,331.20, 523,867.20 and 138,925.60

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Solution

The fourth proportional to 349,331.20, 523,867.20 and 138,925.60 is: 208,336.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,331.20 : 523,867.20 = 138,925.60 : x
  2. Step 2: Convert to fraction form
    349,331.20/523,867.20 = 138,925.60/x
  3. Step 3: Cross multiply
    349,331.20x = 523,867.20 × 138,925.60
  4. Step 4: Simplify right side
    349,331.20x = 72,778,565,080.32
  5. Step 5: Solve for x
    x = 72,778,565,080.32/349,331.20
  6. Step 6: Final answer
    x = 208,336.86

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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.