Home / 429,216.64-643,825.04-162,977.28

Finding the Fourth Proportional to 429,216.64, 643,825.04 and 162,977.28

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Solution

The fourth proportional to 429,216.64, 643,825.04 and 162,977.28 is: 244,465.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,216.64 : 643,825.04 = 162,977.28 : x
  2. Step 2: Convert to fraction form
    429,216.64/643,825.04 = 162,977.28/x
  3. Step 3: Cross multiply
    429,216.64x = 643,825.04 × 162,977.28
  4. Step 4: Simplify right side
    429,216.64x = 104,928,853,815.09
  5. Step 5: Solve for x
    x = 104,928,853,815.09/429,216.64
  6. Step 6: Final answer
    x = 244,465.95

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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.