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Finding the Fourth Proportional to 288,860.20, 432,944.70 and 148,546.60

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Solution

The fourth proportional to 288,860.20, 432,944.70 and 148,546.60 is: 222,642.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,860.20 : 432,944.70 = 148,546.60 : x
  2. Step 2: Convert to fraction form
    288,860.20/432,944.70 = 148,546.60/x
  3. Step 3: Cross multiply
    288,860.20x = 432,944.70 × 148,546.60
  4. Step 4: Simplify right side
    288,860.20x = 64,312,463,173.02
  5. Step 5: Solve for x
    x = 64,312,463,173.02/288,860.20
  6. Step 6: Final answer
    x = 222,642.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.