Home / 400,907.10-553,252.43-219,615.05

Finding the Fourth Proportional to 400,907.10, 553,252.43 and 219,615.05

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Solution

The fourth proportional to 400,907.10, 553,252.43 and 219,615.05 is: 303,069.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,907.10 : 553,252.43 = 219,615.05 : x
  2. Step 2: Convert to fraction form
    400,907.10/553,252.43 = 219,615.05/x
  3. Step 3: Cross multiply
    400,907.10x = 553,252.43 × 219,615.05
  4. Step 4: Simplify right side
    400,907.10x = 121,502,556,212.73
  5. Step 5: Solve for x
    x = 121,502,556,212.73/400,907.10
  6. Step 6: Final answer
    x = 303,069.11

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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.