Home / 306,724.56-459,931.23-140,370

Finding the Fourth Proportional to 306,724.56, 459,931.23 and 140,370

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Solution

The fourth proportional to 306,724.56, 459,931.23 and 140,370 is: 210,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,724.56 : 459,931.23 = 140,370 : x
  2. Step 2: Convert to fraction form
    306,724.56/459,931.23 = 140,370/x
  3. Step 3: Cross multiply
    306,724.56x = 459,931.23 × 140,370
  4. Step 4: Simplify right side
    306,724.56x = 64,560,546,755.10
  5. Step 5: Solve for x
    x = 64,560,546,755.10/306,724.56
  6. Step 6: Final answer
    x = 210,483.79

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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.