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Finding the Fourth Proportional to 434,687.16, 651,960.77 and 119,070.30

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Solution

The fourth proportional to 434,687.16, 651,960.77 and 119,070.30 is: 178,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,687.16 : 651,960.77 = 119,070.30 : x
  2. Step 2: Convert to fraction form
    434,687.16/651,960.77 = 119,070.30/x
  3. Step 3: Cross multiply
    434,687.16x = 651,960.77 × 119,070.30
  4. Step 4: Simplify right side
    434,687.16x = 77,629,163,876.78
  5. Step 5: Solve for x
    x = 77,629,163,876.78/434,687.16
  6. Step 6: Final answer
    x = 178,586.28

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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.