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Finding the Fourth Proportional to 228,592.58, 342,905.30 and 78,830.70

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Solution

The fourth proportional to 228,592.58, 342,905.30 and 78,830.70 is: 118,251.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,592.58 : 342,905.30 = 78,830.70 : x
  2. Step 2: Convert to fraction form
    228,592.58/342,905.30 = 78,830.70/x
  3. Step 3: Cross multiply
    228,592.58x = 342,905.30 × 78,830.70
  4. Step 4: Simplify right side
    228,592.58x = 27,031,464,438.56
  5. Step 5: Solve for x
    x = 27,031,464,438.56/228,592.58
  6. Step 6: Final answer
    x = 118,251.72

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1.5x scale

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.