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Finding the Fourth Proportional to 245,566.70, 368,436.45 and 87,800.30

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Solution

The fourth proportional to 245,566.70, 368,436.45 and 87,800.30 is: 131,731.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,566.70 : 368,436.45 = 87,800.30 : x
  2. Step 2: Convert to fraction form
    245,566.70/368,436.45 = 87,800.30/x
  3. Step 3: Cross multiply
    245,566.70x = 368,436.45 × 87,800.30
  4. Step 4: Simplify right side
    245,566.70x = 32,348,830,840.94
  5. Step 5: Solve for x
    x = 32,348,830,840.94/245,566.70
  6. Step 6: Final answer
    x = 131,731.34

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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.