Home / 389,287.38-583,749.62-202,248.66

Finding the Fourth Proportional to 389,287.38, 583,749.62 and 202,248.66

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Solution

The fourth proportional to 389,287.38, 583,749.62 and 202,248.66 is: 303,278.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,287.38 : 583,749.62 = 202,248.66 : x
  2. Step 2: Convert to fraction form
    389,287.38/583,749.62 = 202,248.66/x
  3. Step 3: Cross multiply
    389,287.38x = 583,749.62 × 202,248.66
  4. Step 4: Simplify right side
    389,287.38x = 118,062,578,420.51
  5. Step 5: Solve for x
    x = 118,062,578,420.51/389,287.38
  6. Step 6: Final answer
    x = 303,278.72

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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.