Home / 459,286.16-688,557.48-143,580.56

Finding the Fourth Proportional to 459,286.16, 688,557.48 and 143,580.56

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Solution

The fourth proportional to 459,286.16, 688,557.48 and 143,580.56 is: 215,254.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,286.16 : 688,557.48 = 143,580.56 : x
  2. Step 2: Convert to fraction form
    459,286.16/688,557.48 = 143,580.56/x
  3. Step 3: Cross multiply
    459,286.16x = 688,557.48 × 143,580.56
  4. Step 4: Simplify right side
    459,286.16x = 98,863,468,570.59
  5. Step 5: Solve for x
    x = 98,863,468,570.59/459,286.16
  6. Step 6: Final answer
    x = 215,254.62

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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.