Home / 345,530.16-476,860.80-194,656.32

Finding the Fourth Proportional to 345,530.16, 476,860.80 and 194,656.32

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Solution

The fourth proportional to 345,530.16, 476,860.80 and 194,656.32 is: 268,642.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,530.16 : 476,860.80 = 194,656.32 : x
  2. Step 2: Convert to fraction form
    345,530.16/476,860.80 = 194,656.32/x
  3. Step 3: Cross multiply
    345,530.16x = 476,860.80 × 194,656.32
  4. Step 4: Simplify right side
    345,530.16x = 92,823,968,480.26
  5. Step 5: Solve for x
    x = 92,823,968,480.26/345,530.16
  6. Step 6: Final answer
    x = 268,642.16

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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.