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Finding the Fourth Proportional to 254,466.40, 381,699.60 and 149,490.40

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Solution

The fourth proportional to 254,466.40, 381,699.60 and 149,490.40 is: 224,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,466.40 : 381,699.60 = 149,490.40 : x
  2. Step 2: Convert to fraction form
    254,466.40/381,699.60 = 149,490.40/x
  3. Step 3: Cross multiply
    254,466.40x = 381,699.60 × 149,490.40
  4. Step 4: Simplify right side
    254,466.40x = 57,060,425,883.84
  5. Step 5: Solve for x
    x = 57,060,425,883.84/254,466.40
  6. Step 6: Final answer
    x = 224,235.60

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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.