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Finding the Fourth Proportional to 251,964, 377,946 and 104,220

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Solution

The fourth proportional to 251,964, 377,946 and 104,220 is: 156,330

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,964 : 377,946 = 104,220 : x
  2. Step 2: Convert to fraction form
    251,964/377,946 = 104,220/x
  3. Step 3: Cross multiply
    251,964x = 377,946 × 104,220
  4. Step 4: Simplify right side
    251,964x = 39,389,532,120
  5. Step 5: Solve for x
    x = 39,389,532,120/251,964
  6. Step 6: Final answer
    x = 156,330

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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.