Home / 442,933.40-664,313.70-143,341.40

Finding the Fourth Proportional to 442,933.40, 664,313.70 and 143,341.40

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Solution

The fourth proportional to 442,933.40, 664,313.70 and 143,341.40 is: 214,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,933.40 : 664,313.70 = 143,341.40 : x
  2. Step 2: Convert to fraction form
    442,933.40/664,313.70 = 143,341.40/x
  3. Step 3: Cross multiply
    442,933.40x = 664,313.70 × 143,341.40
  4. Step 4: Simplify right side
    442,933.40x = 95,223,655,797.18
  5. Step 5: Solve for x
    x = 95,223,655,797.18/442,933.40
  6. Step 6: Final answer
    x = 214,984.14

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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.