Home / 401,152.45-553,565.26-219,851.53

Finding the Fourth Proportional to 401,152.45, 553,565.26 and 219,851.53

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Solution

The fourth proportional to 401,152.45, 553,565.26 and 219,851.53 is: 303,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,152.45 : 553,565.26 = 219,851.53 : x
  2. Step 2: Convert to fraction form
    401,152.45/553,565.26 = 219,851.53/x
  3. Step 3: Cross multiply
    401,152.45x = 553,565.26 × 219,851.53
  4. Step 4: Simplify right side
    401,152.45x = 121,702,169,365.85
  5. Step 5: Solve for x
    x = 121,702,169,365.85/401,152.45
  6. Step 6: Final answer
    x = 303,381.34

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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.