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Finding the Third Proportional to 357,553 and 530,145

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Solution

The third proportional to 357,553 and 530,145 is: 786,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,553 : 530,145 = 530,145 : x
  2. Step 2: Convert to fraction form
    357,553/530,145 = 530,145/x
  3. Step 3: Cross multiply
    357,553x = 530,145 × 530,145
  4. Step 4: Simplify right side
    357,553x = 281,053,721,025
  5. Step 5: Solve for x
    x = 281,053,721,025/357,553
  6. Step 6: Final answer
    x = 786,047.72

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.