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Finding the Third Proportional to 180,315 and 265,369.50

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Solution

The third proportional to 180,315 and 265,369.50 is: 390,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,315 : 265,369.50 = 265,369.50 : x
  2. Step 2: Convert to fraction form
    180,315/265,369.50 = 265,369.50/x
  3. Step 3: Cross multiply
    180,315x = 265,369.50 × 265,369.50
  4. Step 4: Simplify right side
    180,315x = 70,420,971,530.25
  5. Step 5: Solve for x
    x = 70,420,971,530.25/180,315
  6. Step 6: Final answer
    x = 390,544.17

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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.