Home / 307,087.07-423,871.40-193,985.15

Finding the Fourth Proportional to 307,087.07, 423,871.40 and 193,985.15

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Solution

The fourth proportional to 307,087.07, 423,871.40 and 193,985.15 is: 267,757.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,087.07 : 423,871.40 = 193,985.15 : x
  2. Step 2: Convert to fraction form
    307,087.07/423,871.40 = 193,985.15/x
  3. Step 3: Cross multiply
    307,087.07x = 423,871.40 × 193,985.15
  4. Step 4: Simplify right side
    307,087.07x = 82,224,756,139.78
  5. Step 5: Solve for x
    x = 82,224,756,139.78/307,087.07
  6. Step 6: Final answer
    x = 267,757.14

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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.