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Finding the Fourth Proportional to 402,487.05, 603,751.26 and 102,970.22

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Solution

The fourth proportional to 402,487.05, 603,751.26 and 102,970.22 is: 154,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,487.05 : 603,751.26 = 102,970.22 : x
  2. Step 2: Convert to fraction form
    402,487.05/603,751.26 = 102,970.22/x
  3. Step 3: Cross multiply
    402,487.05x = 603,751.26 × 102,970.22
  4. Step 4: Simplify right side
    402,487.05x = 62,168,397,048.72
  5. Step 5: Solve for x
    x = 62,168,397,048.72/402,487.05
  6. Step 6: Final answer
    x = 154,460.61

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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.