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Finding the Fourth Proportional to 309,501.44, 427,298.28 and 202,250.96

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Solution

The fourth proportional to 309,501.44, 427,298.28 and 202,250.96 is: 279,228.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,501.44 : 427,298.28 = 202,250.96 : x
  2. Step 2: Convert to fraction form
    309,501.44/427,298.28 = 202,250.96/x
  3. Step 3: Cross multiply
    309,501.44x = 427,298.28 × 202,250.96
  4. Step 4: Simplify right side
    309,501.44x = 86,421,487,336.35
  5. Step 5: Solve for x
    x = 86,421,487,336.35/309,501.44
  6. Step 6: Final answer
    x = 279,228.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.