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Finding the Fourth Proportional to 103,220.98, 154,803.35 and 28,323.37

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Solution

The fourth proportional to 103,220.98, 154,803.35 and 28,323.37 is: 42,477.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,220.98 : 154,803.35 = 28,323.37 : x
  2. Step 2: Convert to fraction form
    103,220.98/154,803.35 = 28,323.37/x
  3. Step 3: Cross multiply
    103,220.98x = 154,803.35 × 28,323.37
  4. Step 4: Simplify right side
    103,220.98x = 4,384,552,823.60
  5. Step 5: Solve for x
    x = 4,384,552,823.60/103,220.98
  6. Step 6: Final answer
    x = 42,477.34

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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.