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Finding the Fourth Proportional to 370,782.36, 555,992.10 and 258,516.36

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Solution

The fourth proportional to 370,782.36, 555,992.10 and 258,516.36 is: 387,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,782.36 : 555,992.10 = 258,516.36 : x
  2. Step 2: Convert to fraction form
    370,782.36/555,992.10 = 258,516.36/x
  3. Step 3: Cross multiply
    370,782.36x = 555,992.10 × 258,516.36
  4. Step 4: Simplify right side
    370,782.36x = 143,733,053,880.76
  5. Step 5: Solve for x
    x = 143,733,053,880.76/370,782.36
  6. Step 6: Final answer
    x = 387,648.04

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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.