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Finding the Third Proportional to 258,069.75 and 607,258.50

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Solution

The third proportional to 258,069.75 and 607,258.50 is: 1,428,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,069.75 : 607,258.50 = 607,258.50 : x
  2. Step 2: Convert to fraction form
    258,069.75/607,258.50 = 607,258.50/x
  3. Step 3: Cross multiply
    258,069.75x = 607,258.50 × 607,258.50
  4. Step 4: Simplify right side
    258,069.75x = 368,762,885,822.25
  5. Step 5: Solve for x
    x = 368,762,885,822.25/258,069.75
  6. Step 6: Final answer
    x = 1,428,927.20

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.