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Finding the Fourth Proportional to 219,437.80, 329,156.70 and 202,330.60

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Solution

The fourth proportional to 219,437.80, 329,156.70 and 202,330.60 is: 303,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,437.80 : 329,156.70 = 202,330.60 : x
  2. Step 2: Convert to fraction form
    219,437.80/329,156.70 = 202,330.60/x
  3. Step 3: Cross multiply
    219,437.80x = 329,156.70 × 202,330.60
  4. Step 4: Simplify right side
    219,437.80x = 66,598,472,605.02
  5. Step 5: Solve for x
    x = 66,598,472,605.02/219,437.80
  6. Step 6: Final answer
    x = 303,495.90

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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.