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Finding the Fourth Proportional to 245,370.37, 368,055.61 and 76,890.66

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Solution

The fourth proportional to 245,370.37, 368,055.61 and 76,890.66 is: 115,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,370.37 : 368,055.61 = 76,890.66 : x
  2. Step 2: Convert to fraction form
    245,370.37/368,055.61 = 76,890.66/x
  3. Step 3: Cross multiply
    245,370.37x = 368,055.61 × 76,890.66
  4. Step 4: Simplify right side
    245,370.37x = 28,300,038,385.15
  5. Step 5: Solve for x
    x = 28,300,038,385.15/245,370.37
  6. Step 6: Final answer
    x = 115,336.01

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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.