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Finding the Fourth Proportional to 351,102.72, 484,521.78 and 189,957.66

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Solution

The fourth proportional to 351,102.72, 484,521.78 and 189,957.66 is: 262,141.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,102.72 : 484,521.78 = 189,957.66 : x
  2. Step 2: Convert to fraction form
    351,102.72/484,521.78 = 189,957.66/x
  3. Step 3: Cross multiply
    351,102.72x = 484,521.78 × 189,957.66
  4. Step 4: Simplify right side
    351,102.72x = 92,038,623,547.83
  5. Step 5: Solve for x
    x = 92,038,623,547.83/351,102.72
  6. Step 6: Final answer
    x = 262,141.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.