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Finding the Third Proportional to 286,173 and 420,484.50

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Solution

The third proportional to 286,173 and 420,484.50 is: 617,833.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,173 : 420,484.50 = 420,484.50 : x
  2. Step 2: Convert to fraction form
    286,173/420,484.50 = 420,484.50/x
  3. Step 3: Cross multiply
    286,173x = 420,484.50 × 420,484.50
  4. Step 4: Simplify right side
    286,173x = 176,807,214,740.25
  5. Step 5: Solve for x
    x = 176,807,214,740.25/286,173
  6. Step 6: Final answer
    x = 617,833.32

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.