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Finding the Fourth Proportional to 316,362.68, 437,054.70 and 207,724.76

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Solution

The fourth proportional to 316,362.68, 437,054.70 and 207,724.76 is: 286,971.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,362.68 : 437,054.70 = 207,724.76 : x
  2. Step 2: Convert to fraction form
    316,362.68/437,054.70 = 207,724.76/x
  3. Step 3: Cross multiply
    316,362.68x = 437,054.70 × 207,724.76
  4. Step 4: Simplify right side
    316,362.68x = 90,787,082,664.37
  5. Step 5: Solve for x
    x = 90,787,082,664.37/316,362.68
  6. Step 6: Final answer
    x = 286,971.53

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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.