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Finding the Fourth Proportional to 389,242.08, 583,880.69 and 119,350.51

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Solution

The fourth proportional to 389,242.08, 583,880.69 and 119,350.51 is: 179,031.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,242.08 : 583,880.69 = 119,350.51 : x
  2. Step 2: Convert to fraction form
    389,242.08/583,880.69 = 119,350.51/x
  3. Step 3: Cross multiply
    389,242.08x = 583,880.69 × 119,350.51
  4. Step 4: Simplify right side
    389,242.08x = 69,686,456,969.33
  5. Step 5: Solve for x
    x = 69,686,456,969.33/389,242.08
  6. Step 6: Final answer
    x = 179,031.15

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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.