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Finding the Third Proportional to 121,479.75 and 265,087.69

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Solution

The third proportional to 121,479.75 and 265,087.69 is: 578,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,479.75 : 265,087.69 = 265,087.69 : x
  2. Step 2: Convert to fraction form
    121,479.75/265,087.69 = 265,087.69/x
  3. Step 3: Cross multiply
    121,479.75x = 265,087.69 × 265,087.69
  4. Step 4: Simplify right side
    121,479.75x = 70,271,482,064.10
  5. Step 5: Solve for x
    x = 70,271,482,064.10/121,479.75
  6. Step 6: Final answer
    x = 578,462.52

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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.