Home / 400,822.08-553,114.76-219,534.80

Finding the Fourth Proportional to 400,822.08, 553,114.76 and 219,534.80

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Solution

The fourth proportional to 400,822.08, 553,114.76 and 219,534.80 is: 302,947.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,822.08 : 553,114.76 = 219,534.80 : x
  2. Step 2: Convert to fraction form
    400,822.08/553,114.76 = 219,534.80/x
  3. Step 3: Cross multiply
    400,822.08x = 553,114.76 × 219,534.80
  4. Step 4: Simplify right side
    400,822.08x = 121,427,938,213.65
  5. Step 5: Solve for x
    x = 121,427,938,213.65/400,822.08
  6. Step 6: Final answer
    x = 302,947.23

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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.