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Finding the Fourth Proportional to 228,023.40, 342,072.54 and 70,251.88

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Solution

The fourth proportional to 228,023.40, 342,072.54 and 70,251.88 is: 105,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,023.40 : 342,072.54 = 70,251.88 : x
  2. Step 2: Convert to fraction form
    228,023.40/342,072.54 = 70,251.88/x
  3. Step 3: Cross multiply
    228,023.40x = 342,072.54 × 70,251.88
  4. Step 4: Simplify right side
    228,023.40x = 24,031,239,031.38
  5. Step 5: Solve for x
    x = 24,031,239,031.38/228,023.40
  6. Step 6: Final answer
    x = 105,389.35

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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.