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Finding the Fourth Proportional to 289,963.88, 435,056.46 and 112,595.32

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Solution

The fourth proportional to 289,963.88, 435,056.46 and 112,595.32 is: 168,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,963.88 : 435,056.46 = 112,595.32 : x
  2. Step 2: Convert to fraction form
    289,963.88/435,056.46 = 112,595.32/x
  3. Step 3: Cross multiply
    289,963.88x = 435,056.46 × 112,595.32
  4. Step 4: Simplify right side
    289,963.88x = 48,985,321,331.77
  5. Step 5: Solve for x
    x = 48,985,321,331.77/289,963.88
  6. Step 6: Final answer
    x = 168,935.94

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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.