Home / 305,032.40-457,548.60-198,744.20

Finding the Fourth Proportional to 305,032.40, 457,548.60 and 198,744.20

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Solution

The fourth proportional to 305,032.40, 457,548.60 and 198,744.20 is: 298,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,032.40 : 457,548.60 = 198,744.20 : x
  2. Step 2: Convert to fraction form
    305,032.40/457,548.60 = 198,744.20/x
  3. Step 3: Cross multiply
    305,032.40x = 457,548.60 × 198,744.20
  4. Step 4: Simplify right side
    305,032.40x = 90,935,130,468.12
  5. Step 5: Solve for x
    x = 90,935,130,468.12/305,032.40
  6. Step 6: Final answer
    x = 298,116.30

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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.