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Finding the Fourth Proportional to 374,419.20, 561,631.20 and 149,798.40

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Solution

The fourth proportional to 374,419.20, 561,631.20 and 149,798.40 is: 224,698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,419.20 : 561,631.20 = 149,798.40 : x
  2. Step 2: Convert to fraction form
    374,419.20/561,631.20 = 149,798.40/x
  3. Step 3: Cross multiply
    374,419.20x = 561,631.20 × 149,798.40
  4. Step 4: Simplify right side
    374,419.20x = 84,131,455,150.08
  5. Step 5: Solve for x
    x = 84,131,455,150.08/374,419.20
  6. Step 6: Final answer
    x = 224,698.56

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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.