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Finding the Fourth Proportional to 360,250.12, 540,262.86 and 135,641.80

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Solution

The fourth proportional to 360,250.12, 540,262.86 and 135,641.80 is: 203,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,250.12 : 540,262.86 = 135,641.80 : x
  2. Step 2: Convert to fraction form
    360,250.12/540,262.86 = 135,641.80/x
  3. Step 3: Cross multiply
    360,250.12x = 540,262.86 × 135,641.80
  4. Step 4: Simplify right side
    360,250.12x = 73,282,226,803.55
  5. Step 5: Solve for x
    x = 73,282,226,803.55/360,250.12
  6. Step 6: Final answer
    x = 203,420.41

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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.