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Finding the Fourth Proportional to 254,435.80, 381,653.70 and 149,459.80

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Solution

The fourth proportional to 254,435.80, 381,653.70 and 149,459.80 is: 224,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,435.80 : 381,653.70 = 149,459.80 : x
  2. Step 2: Convert to fraction form
    254,435.80/381,653.70 = 149,459.80/x
  3. Step 3: Cross multiply
    254,435.80x = 381,653.70 × 149,459.80
  4. Step 4: Simplify right side
    254,435.80x = 57,041,885,671.26
  5. Step 5: Solve for x
    x = 57,041,885,671.26/254,435.80
  6. Step 6: Final answer
    x = 224,189.70

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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.