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Finding the Fourth Proportional to 297,012.20, 445,518.30 and 157,044.20

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Solution

The fourth proportional to 297,012.20, 445,518.30 and 157,044.20 is: 235,566.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,012.20 : 445,518.30 = 157,044.20 : x
  2. Step 2: Convert to fraction form
    297,012.20/445,518.30 = 157,044.20/x
  3. Step 3: Cross multiply
    297,012.20x = 445,518.30 × 157,044.20
  4. Step 4: Simplify right side
    297,012.20x = 69,966,065,008.86
  5. Step 5: Solve for x
    x = 69,966,065,008.86/297,012.20
  6. Step 6: Final answer
    x = 235,566.30

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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.