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Finding the Fourth Proportional to 228,047.80, 342,071.70 and 103,631.80

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Solution

The fourth proportional to 228,047.80, 342,071.70 and 103,631.80 is: 155,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,047.80 : 342,071.70 = 103,631.80 : x
  2. Step 2: Convert to fraction form
    228,047.80/342,071.70 = 103,631.80/x
  3. Step 3: Cross multiply
    228,047.80x = 342,071.70 × 103,631.80
  4. Step 4: Simplify right side
    228,047.80x = 35,449,506,000.06
  5. Step 5: Solve for x
    x = 35,449,506,000.06/228,047.80
  6. Step 6: Final answer
    x = 155,447.70

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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.