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Finding the Fourth Proportional to 245,550.45, 368,300.70 and 77,072.07

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Solution

The fourth proportional to 245,550.45, 368,300.70 and 77,072.07 is: 115,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,550.45 : 368,300.70 = 77,072.07 : x
  2. Step 2: Convert to fraction form
    245,550.45/368,300.70 = 77,072.07/x
  3. Step 3: Cross multiply
    245,550.45x = 368,300.70 × 77,072.07
  4. Step 4: Simplify right side
    245,550.45x = 28,385,697,331.45
  5. Step 5: Solve for x
    x = 28,385,697,331.45/245,550.45
  6. Step 6: Final answer
    x = 115,600.27

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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.