Home / 307,087.32-423,871.74-193,985.40

Finding the Fourth Proportional to 307,087.32, 423,871.74 and 193,985.40

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Solution

The fourth proportional to 307,087.32, 423,871.74 and 193,985.40 is: 267,757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,087.32 : 423,871.74 = 193,985.40 : x
  2. Step 2: Convert to fraction form
    307,087.32/423,871.74 = 193,985.40/x
  3. Step 3: Cross multiply
    307,087.32x = 423,871.74 × 193,985.40
  4. Step 4: Simplify right side
    307,087.32x = 82,224,929,032.60
  5. Step 5: Solve for x
    x = 82,224,929,032.60/307,087.32
  6. Step 6: Final answer
    x = 267,757.49

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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.