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Finding the Fourth Proportional to 256,010.82, 383,897.43 and 149,425.45

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Solution

The fourth proportional to 256,010.82, 383,897.43 and 149,425.45 is: 224,068.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,010.82 : 383,897.43 = 149,425.45 : x
  2. Step 2: Convert to fraction form
    256,010.82/383,897.43 = 149,425.45/x
  3. Step 3: Cross multiply
    256,010.82x = 383,897.43 × 149,425.45
  4. Step 4: Simplify right side
    256,010.82x = 57,364,046,231.59
  5. Step 5: Solve for x
    x = 57,364,046,231.59/256,010.82
  6. Step 6: Final answer
    x = 224,068.84

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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.