Home / 248,438.72-342,840.05-145,090.69

Finding the Fourth Proportional to 248,438.72, 342,840.05 and 145,090.69

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Solution

The fourth proportional to 248,438.72, 342,840.05 and 145,090.69 is: 200,222.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,438.72 : 342,840.05 = 145,090.69 : x
  2. Step 2: Convert to fraction form
    248,438.72/342,840.05 = 145,090.69/x
  3. Step 3: Cross multiply
    248,438.72x = 342,840.05 × 145,090.69
  4. Step 4: Simplify right side
    248,438.72x = 49,742,899,414.13
  5. Step 5: Solve for x
    x = 49,742,899,414.13/248,438.72
  6. Step 6: Final answer
    x = 200,222.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.