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Finding the Fourth Proportional to 201,444.20, 301,420.90 and 121,528.49

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Solution

The fourth proportional to 201,444.20, 301,420.90 and 121,528.49 is: 181,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,444.20 : 301,420.90 = 121,528.49 : x
  2. Step 2: Convert to fraction form
    201,444.20/301,420.90 = 121,528.49/x
  3. Step 3: Cross multiply
    201,444.20x = 301,420.90 × 121,528.49
  4. Step 4: Simplify right side
    201,444.20x = 36,631,226,831.44
  5. Step 5: Solve for x
    x = 36,631,226,831.44/201,444.20
  6. Step 6: Final answer
    x = 181,843.05

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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.