Home / 328,301.15-492,110.30-138,603.20

Finding the Fourth Proportional to 328,301.15, 492,110.30 and 138,603.20

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Solution

The fourth proportional to 328,301.15, 492,110.30 and 138,603.20 is: 207,760.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,301.15 : 492,110.30 = 138,603.20 : x
  2. Step 2: Convert to fraction form
    328,301.15/492,110.30 = 138,603.20/x
  3. Step 3: Cross multiply
    328,301.15x = 492,110.30 × 138,603.20
  4. Step 4: Simplify right side
    328,301.15x = 68,208,062,332.96
  5. Step 5: Solve for x
    x = 68,208,062,332.96/328,301.15
  6. Step 6: Final answer
    x = 207,760.66

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1.5x scale

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.