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Finding the Fourth Proportional to 422,210.88, 633,248.28 and 185,509.44

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Solution

The fourth proportional to 422,210.88, 633,248.28 and 185,509.44 is: 278,234.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,210.88 : 633,248.28 = 185,509.44 : x
  2. Step 2: Convert to fraction form
    422,210.88/633,248.28 = 185,509.44/x
  3. Step 3: Cross multiply
    422,210.88x = 633,248.28 × 185,509.44
  4. Step 4: Simplify right side
    422,210.88x = 117,473,533,803.76
  5. Step 5: Solve for x
    x = 117,473,533,803.76/422,210.88
  6. Step 6: Final answer
    x = 278,234.26

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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.