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Finding the Fourth Proportional to 288,936.80, 433,232.40 and 148,968.80

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Solution

The fourth proportional to 288,936.80, 433,232.40 and 148,968.80 is: 223,364.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,936.80 : 433,232.40 = 148,968.80 : x
  2. Step 2: Convert to fraction form
    288,936.80/433,232.40 = 148,968.80/x
  3. Step 3: Cross multiply
    288,936.80x = 433,232.40 × 148,968.80
  4. Step 4: Simplify right side
    288,936.80x = 64,538,110,749.12
  5. Step 5: Solve for x
    x = 64,538,110,749.12/288,936.80
  6. Step 6: Final answer
    x = 223,364.11

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1.5x scale

Why These Related Problems?

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