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Finding the Fourth Proportional to 218,459.80, 306,465.80 and 218,459.80

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Solution

The fourth proportional to 218,459.80, 306,465.80 and 218,459.80 is: 306,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,459.80 : 306,465.80 = 218,459.80 : x
  2. Step 2: Convert to fraction form
    218,459.80/306,465.80 = 218,459.80/x
  3. Step 3: Cross multiply
    218,459.80x = 306,465.80 × 218,459.80
  4. Step 4: Simplify right side
    218,459.80x = 66,950,457,374.84
  5. Step 5: Solve for x
    x = 66,950,457,374.84/218,459.80
  6. Step 6: Final answer
    x = 306,465.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.