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Finding the Third Proportional to 30,152 and 64,312

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Solution

The third proportional to 30,152 and 64,312 is: 137,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,152 : 64,312 = 64,312 : x
  2. Step 2: Convert to fraction form
    30,152/64,312 = 64,312/x
  3. Step 3: Cross multiply
    30,152x = 64,312 × 64,312
  4. Step 4: Simplify right side
    30,152x = 4,136,033,344
  5. Step 5: Solve for x
    x = 4,136,033,344/30,152
  6. Step 6: Final answer
    x = 137,172.77

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.