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Finding the Fourth Proportional to 256,907.70, 385,327.53 and 116,634.06

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Solution

The fourth proportional to 256,907.70, 385,327.53 and 116,634.06 is: 174,935.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,907.70 : 385,327.53 = 116,634.06 : x
  2. Step 2: Convert to fraction form
    256,907.70/385,327.53 = 116,634.06/x
  3. Step 3: Cross multiply
    256,907.70x = 385,327.53 × 116,634.06
  4. Step 4: Simplify right side
    256,907.70x = 44,942,314,253.67
  5. Step 5: Solve for x
    x = 44,942,314,253.67/256,907.70
  6. Step 6: Final answer
    x = 174,935.65

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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.