Home / 397,980.25-549,207.27-216,692.18

Finding the Fourth Proportional to 397,980.25, 549,207.27 and 216,692.18

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Solution

The fourth proportional to 397,980.25, 549,207.27 and 216,692.18 is: 299,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,980.25 : 549,207.27 = 216,692.18 : x
  2. Step 2: Convert to fraction form
    397,980.25/549,207.27 = 216,692.18/x
  3. Step 3: Cross multiply
    397,980.25x = 549,207.27 × 216,692.18
  4. Step 4: Simplify right side
    397,980.25x = 119,008,916,778.65
  5. Step 5: Solve for x
    x = 119,008,916,778.65/397,980.25
  6. Step 6: Final answer
    x = 299,032.22

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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.