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Finding the Fourth Proportional to 384,376.09, 530,250.34 and 248,526.54

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Solution

The fourth proportional to 384,376.09, 530,250.34 and 248,526.54 is: 342,844.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,376.09 : 530,250.34 = 248,526.54 : x
  2. Step 2: Convert to fraction form
    384,376.09/530,250.34 = 248,526.54/x
  3. Step 3: Cross multiply
    384,376.09x = 530,250.34 × 248,526.54
  4. Step 4: Simplify right side
    384,376.09x = 131,781,282,334.02
  5. Step 5: Solve for x
    x = 131,781,282,334.02/384,376.09
  6. Step 6: Final answer
    x = 342,844.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.