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Finding the Fourth Proportional to 385,700.70, 532,299.90 and 224,606.28

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Solution

The fourth proportional to 385,700.70, 532,299.90 and 224,606.28 is: 309,975.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,700.70 : 532,299.90 = 224,606.28 : x
  2. Step 2: Convert to fraction form
    385,700.70/532,299.90 = 224,606.28/x
  3. Step 3: Cross multiply
    385,700.70x = 532,299.90 × 224,606.28
  4. Step 4: Simplify right side
    385,700.70x = 119,557,900,383.37
  5. Step 5: Solve for x
    x = 119,557,900,383.37/385,700.70
  6. Step 6: Final answer
    x = 309,975.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.