Home / 292,286.40-438,475.47-123,807.21

Finding the Fourth Proportional to 292,286.40, 438,475.47 and 123,807.21

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Solution

The fourth proportional to 292,286.40, 438,475.47 and 123,807.21 is: 185,730.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,286.40 : 438,475.47 = 123,807.21 : x
  2. Step 2: Convert to fraction form
    292,286.40/438,475.47 = 123,807.21/x
  3. Step 3: Cross multiply
    292,286.40x = 438,475.47 × 123,807.21
  4. Step 4: Simplify right side
    292,286.40x = 54,286,424,594.14
  5. Step 5: Solve for x
    x = 54,286,424,594.14/292,286.40
  6. Step 6: Final answer
    x = 185,730.24

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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.