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Finding the Fourth Proportional to 450,285.60, 675,428.28 and 213,499.08

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Solution

The fourth proportional to 450,285.60, 675,428.28 and 213,499.08 is: 320,248.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,285.60 : 675,428.28 = 213,499.08 : x
  2. Step 2: Convert to fraction form
    450,285.60/675,428.28 = 213,499.08/x
  3. Step 3: Cross multiply
    450,285.60x = 675,428.28 × 213,499.08
  4. Step 4: Simplify right side
    450,285.60x = 144,203,316,385.98
  5. Step 5: Solve for x
    x = 144,203,316,385.98/450,285.60
  6. Step 6: Final answer
    x = 320,248.56

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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.