Home / 400,973.81-553,343.84-219,692.60

Finding the Fourth Proportional to 400,973.81, 553,343.84 and 219,692.60

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Solution

The fourth proportional to 400,973.81, 553,343.84 and 219,692.60 is: 303,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,973.81 : 553,343.84 = 219,692.60 : x
  2. Step 2: Convert to fraction form
    400,973.81/553,343.84 = 219,692.60/x
  3. Step 3: Cross multiply
    400,973.81x = 553,343.84 × 219,692.60
  4. Step 4: Simplify right side
    400,973.81x = 121,565,545,937.29
  5. Step 5: Solve for x
    x = 121,565,545,937.29/400,973.81
  6. Step 6: Final answer
    x = 303,175.78

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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.