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Finding the Fourth Proportional to 369,086.72, 509,341.44 and 207,944.32

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Solution

The fourth proportional to 369,086.72, 509,341.44 and 207,944.32 is: 286,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,086.72 : 509,341.44 = 207,944.32 : x
  2. Step 2: Convert to fraction form
    369,086.72/509,341.44 = 207,944.32/x
  3. Step 3: Cross multiply
    369,086.72x = 509,341.44 × 207,944.32
  4. Step 4: Simplify right side
    369,086.72x = 105,914,659,388.62
  5. Step 5: Solve for x
    x = 105,914,659,388.62/369,086.72
  6. Step 6: Final answer
    x = 286,964.16

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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.