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Finding the Fourth Proportional to 369,187.50, 509,478.96 and 199,421.63

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Solution

The fourth proportional to 369,187.50, 509,478.96 and 199,421.63 is: 275,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,187.50 : 509,478.96 = 199,421.63 : x
  2. Step 2: Convert to fraction form
    369,187.50/509,478.96 = 199,421.63/x
  3. Step 3: Cross multiply
    369,187.50x = 509,478.96 × 199,421.63
  4. Step 4: Simplify right side
    369,187.50x = 101,601,122,106.51
  5. Step 5: Solve for x
    x = 101,601,122,106.51/369,187.50
  6. Step 6: Final answer
    x = 275,201.96

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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.