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Finding the Fourth Proportional to 312,185.98, 430,818.02 and 168,946.04

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Solution

The fourth proportional to 312,185.98, 430,818.02 and 168,946.04 is: 233,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,185.98 : 430,818.02 = 168,946.04 : x
  2. Step 2: Convert to fraction form
    312,185.98/430,818.02 = 168,946.04/x
  3. Step 3: Cross multiply
    312,185.98x = 430,818.02 × 168,946.04
  4. Step 4: Simplify right side
    312,185.98x = 72,784,999,305.50
  5. Step 5: Solve for x
    x = 72,784,999,305.50/312,185.98
  6. Step 6: Final answer
    x = 233,146.28

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1.5x scale

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.