Home / 319,282.30-440,620.21-190,203.13

Finding the Fourth Proportional to 319,282.30, 440,620.21 and 190,203.13

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Solution

The fourth proportional to 319,282.30, 440,620.21 and 190,203.13 is: 262,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,282.30 : 440,620.21 = 190,203.13 : x
  2. Step 2: Convert to fraction form
    319,282.30/440,620.21 = 190,203.13/x
  3. Step 3: Cross multiply
    319,282.30x = 440,620.21 × 190,203.13
  4. Step 4: Simplify right side
    319,282.30x = 83,807,342,801.89
  5. Step 5: Solve for x
    x = 83,807,342,801.89/319,282.30
  6. Step 6: Final answer
    x = 262,486.65

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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.