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Finding the Fourth Proportional to 228,214.30, 342,370.05 and 70,458.70

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Solution

The fourth proportional to 228,214.30, 342,370.05 and 70,458.70 is: 105,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,214.30 : 342,370.05 = 70,458.70 : x
  2. Step 2: Convert to fraction form
    228,214.30/342,370.05 = 70,458.70/x
  3. Step 3: Cross multiply
    228,214.30x = 342,370.05 × 70,458.70
  4. Step 4: Simplify right side
    228,214.30x = 24,122,948,641.94
  5. Step 5: Solve for x
    x = 24,122,948,641.94/228,214.30
  6. Step 6: Final answer
    x = 105,703.05

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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.