Home / 642,692.64-964,173.80-193,446.36

Finding the Fourth Proportional to 642,692.64, 964,173.80 and 193,446.36

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Solution

The fourth proportional to 642,692.64, 964,173.80 and 193,446.36 is: 290,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,692.64 : 964,173.80 = 193,446.36 : x
  2. Step 2: Convert to fraction form
    642,692.64/964,173.80 = 193,446.36/x
  3. Step 3: Cross multiply
    642,692.64x = 964,173.80 × 193,446.36
  4. Step 4: Simplify right side
    642,692.64x = 186,515,912,017.37
  5. Step 5: Solve for x
    x = 186,515,912,017.37/642,692.64
  6. Step 6: Final answer
    x = 290,210.13

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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.