Home / 320,987.13-442,886.16-190,098.66

Finding the Fourth Proportional to 320,987.13, 442,886.16 and 190,098.66

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Solution

The fourth proportional to 320,987.13, 442,886.16 and 190,098.66 is: 262,291.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,987.13 : 442,886.16 = 190,098.66 : x
  2. Step 2: Convert to fraction form
    320,987.13/442,886.16 = 190,098.66/x
  3. Step 3: Cross multiply
    320,987.13x = 442,886.16 × 190,098.66
  4. Step 4: Simplify right side
    320,987.13x = 84,192,065,548.55
  5. Step 5: Solve for x
    x = 84,192,065,548.55/320,987.13
  6. Step 6: Final answer
    x = 262,291.09

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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.