Home / 328,968.72-453,742.08-227,032.80

Finding the Fourth Proportional to 328,968.72, 453,742.08 and 227,032.80

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Solution

The fourth proportional to 328,968.72, 453,742.08 and 227,032.80 is: 313,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,968.72 : 453,742.08 = 227,032.80 : x
  2. Step 2: Convert to fraction form
    328,968.72/453,742.08 = 227,032.80/x
  3. Step 3: Cross multiply
    328,968.72x = 453,742.08 × 227,032.80
  4. Step 4: Simplify right side
    328,968.72x = 103,014,334,900.22
  5. Step 5: Solve for x
    x = 103,014,334,900.22/328,968.72
  6. Step 6: Final answer
    x = 313,143.25

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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.