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Finding the Fourth Proportional to 379,365.91, 523,518.82 and 207,280.19

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Solution

The fourth proportional to 379,365.91, 523,518.82 and 207,280.19 is: 286,043.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,365.91 : 523,518.82 = 207,280.19 : x
  2. Step 2: Convert to fraction form
    379,365.91/523,518.82 = 207,280.19/x
  3. Step 3: Cross multiply
    379,365.91x = 523,518.82 × 207,280.19
  4. Step 4: Simplify right side
    379,365.91x = 108,515,081,268.77
  5. Step 5: Solve for x
    x = 108,515,081,268.77/379,365.91
  6. Step 6: Final answer
    x = 286,043.31

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1.5x scale

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.