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Finding the Fourth Proportional to 427,274.76, 640,913.52 and 160,963.76

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Solution

The fourth proportional to 427,274.76, 640,913.52 and 160,963.76 is: 241,446.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,274.76 : 640,913.52 = 160,963.76 : x
  2. Step 2: Convert to fraction form
    427,274.76/640,913.52 = 160,963.76/x
  3. Step 3: Cross multiply
    427,274.76x = 640,913.52 × 160,963.76
  4. Step 4: Simplify right side
    427,274.76x = 103,163,850,014.04
  5. Step 5: Solve for x
    x = 103,163,850,014.04/427,274.76
  6. Step 6: Final answer
    x = 241,446.16

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1.5x scale

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.