Home / 194,480.02-291,720.30-128,216.08

Finding the Fourth Proportional to 194,480.02, 291,720.30 and 128,216.08

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Solution

The fourth proportional to 194,480.02, 291,720.30 and 128,216.08 is: 192,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,480.02 : 291,720.30 = 128,216.08 : x
  2. Step 2: Convert to fraction form
    194,480.02/291,720.30 = 128,216.08/x
  3. Step 3: Cross multiply
    194,480.02x = 291,720.30 × 128,216.08
  4. Step 4: Simplify right side
    194,480.02x = 37,403,233,322.42
  5. Step 5: Solve for x
    x = 37,403,233,322.42/194,480.02
  6. Step 6: Final answer
    x = 192,324.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.