Home / 433,615.80-649,905.30-223,145.40

Finding the Fourth Proportional to 433,615.80, 649,905.30 and 223,145.40

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Solution

The fourth proportional to 433,615.80, 649,905.30 and 223,145.40 is: 334,451.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,615.80 : 649,905.30 = 223,145.40 : x
  2. Step 2: Convert to fraction form
    433,615.80/649,905.30 = 223,145.40/x
  3. Step 3: Cross multiply
    433,615.80x = 649,905.30 × 223,145.40
  4. Step 4: Simplify right side
    433,615.80x = 145,023,378,130.62
  5. Step 5: Solve for x
    x = 145,023,378,130.62/433,615.80
  6. Step 6: Final answer
    x = 334,451.32

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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.