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Finding the Third Proportional to 145,420.50 and 307,607.50

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Solution

The third proportional to 145,420.50 and 307,607.50 is: 650,681.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,420.50 : 307,607.50 = 307,607.50 : x
  2. Step 2: Convert to fraction form
    145,420.50/307,607.50 = 307,607.50/x
  3. Step 3: Cross multiply
    145,420.50x = 307,607.50 × 307,607.50
  4. Step 4: Simplify right side
    145,420.50x = 94,622,374,056.25
  5. Step 5: Solve for x
    x = 94,622,374,056.25/145,420.50
  6. Step 6: Final answer
    x = 650,681.12

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.