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Finding the Fourth Proportional to 297,430.80, 445,234.95 and 163,902.30

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Solution

The fourth proportional to 297,430.80, 445,234.95 and 163,902.30 is: 245,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,430.80 : 445,234.95 = 163,902.30 : x
  2. Step 2: Convert to fraction form
    297,430.80/445,234.95 = 163,902.30/x
  3. Step 3: Cross multiply
    297,430.80x = 445,234.95 × 163,902.30
  4. Step 4: Simplify right side
    297,430.80x = 72,975,032,345.39
  5. Step 5: Solve for x
    x = 72,975,032,345.39/297,430.80
  6. Step 6: Final answer
    x = 245,351.30

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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.