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Finding the Third Proportional to 315,124.50 and 459,146.25

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Solution

The third proportional to 315,124.50 and 459,146.25 is: 668,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,124.50 : 459,146.25 = 459,146.25 : x
  2. Step 2: Convert to fraction form
    315,124.50/459,146.25 = 459,146.25/x
  3. Step 3: Cross multiply
    315,124.50x = 459,146.25 × 459,146.25
  4. Step 4: Simplify right side
    315,124.50x = 210,815,278,889.06
  5. Step 5: Solve for x
    x = 210,815,278,889.06/315,124.50
  6. Step 6: Final answer
    x = 668,990.44

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.