Home / 307,426.28-458,048.43-290,237.49

Finding the Fourth Proportional to 307,426.28, 458,048.43 and 290,237.49

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Solution

The fourth proportional to 307,426.28, 458,048.43 and 290,237.49 is: 432,438.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,426.28 : 458,048.43 = 290,237.49 : x
  2. Step 2: Convert to fraction form
    307,426.28/458,048.43 = 290,237.49/x
  3. Step 3: Cross multiply
    307,426.28x = 458,048.43 × 290,237.49
  4. Step 4: Simplify right side
    307,426.28x = 132,942,826,621.64
  5. Step 5: Solve for x
    x = 132,942,826,621.64/307,426.28
  6. Step 6: Final answer
    x = 432,438.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.