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Finding the Fourth Proportional to 351,345.78, 484,856.64 and 190,200.78

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Solution

The fourth proportional to 351,345.78, 484,856.64 and 190,200.78 is: 262,476.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,345.78 : 484,856.64 = 190,200.78 : x
  2. Step 2: Convert to fraction form
    351,345.78/484,856.64 = 190,200.78/x
  3. Step 3: Cross multiply
    351,345.78x = 484,856.64 × 190,200.78
  4. Step 4: Simplify right side
    351,345.78x = 92,220,111,116.18
  5. Step 5: Solve for x
    x = 92,220,111,116.18/351,345.78
  6. Step 6: Final answer
    x = 262,476.79

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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.