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Finding the Fourth Proportional to 228,112.70, 342,136.65 and 70,357.10

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Solution

The fourth proportional to 228,112.70, 342,136.65 and 70,357.10 is: 105,525.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,112.70 : 342,136.65 = 70,357.10 : x
  2. Step 2: Convert to fraction form
    228,112.70/342,136.65 = 70,357.10/x
  3. Step 3: Cross multiply
    228,112.70x = 342,136.65 × 70,357.10
  4. Step 4: Simplify right side
    228,112.70x = 24,071,742,497.72
  5. Step 5: Solve for x
    x = 24,071,742,497.72/228,112.70
  6. Step 6: Final answer
    x = 105,525.66

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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.