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Finding the Fourth Proportional to 314,123.70, 471,185.55 and 251,915.70

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Solution

The fourth proportional to 314,123.70, 471,185.55 and 251,915.70 is: 377,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,123.70 : 471,185.55 = 251,915.70 : x
  2. Step 2: Convert to fraction form
    314,123.70/471,185.55 = 251,915.70/x
  3. Step 3: Cross multiply
    314,123.70x = 471,185.55 × 251,915.70
  4. Step 4: Simplify right side
    314,123.70x = 118,699,037,658.14
  5. Step 5: Solve for x
    x = 118,699,037,658.14/314,123.70
  6. Step 6: Final answer
    x = 377,873.55

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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.