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Finding the Third Proportional to 235,015.50 and 342,618

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Solution

The third proportional to 235,015.50 and 342,618 is: 499,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,015.50 : 342,618 = 342,618 : x
  2. Step 2: Convert to fraction form
    235,015.50/342,618 = 342,618/x
  3. Step 3: Cross multiply
    235,015.50x = 342,618 × 342,618
  4. Step 4: Simplify right side
    235,015.50x = 117,387,093,924
  5. Step 5: Solve for x
    x = 117,387,093,924/235,015.50
  6. Step 6: Final answer
    x = 499,486.60

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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.