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Finding the Fourth Proportional to 297,001.20, 445,415.40 and 163,945.20

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Solution

The fourth proportional to 297,001.20, 445,415.40 and 163,945.20 is: 245,870.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,001.20 : 445,415.40 = 163,945.20 : x
  2. Step 2: Convert to fraction form
    297,001.20/445,415.40 = 163,945.20/x
  3. Step 3: Cross multiply
    297,001.20x = 445,415.40 × 163,945.20
  4. Step 4: Simplify right side
    297,001.20x = 73,023,716,836.08
  5. Step 5: Solve for x
    x = 73,023,716,836.08/297,001.20
  6. Step 6: Final answer
    x = 245,870.11

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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.