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Finding the Third Proportional to 318,303 and 432,547.50

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Solution

The third proportional to 318,303 and 432,547.50 is: 587,796.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,303 : 432,547.50 = 432,547.50 : x
  2. Step 2: Convert to fraction form
    318,303/432,547.50 = 432,547.50/x
  3. Step 3: Cross multiply
    318,303x = 432,547.50 × 432,547.50
  4. Step 4: Simplify right side
    318,303x = 187,097,339,756.25
  5. Step 5: Solve for x
    x = 187,097,339,756.25/318,303
  6. Step 6: Final answer
    x = 587,796.34

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.