Home / 375,268.72-517,823.40-298,981.30

Finding the Fourth Proportional to 375,268.72, 517,823.40 and 298,981.30

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Solution

The fourth proportional to 375,268.72, 517,823.40 and 298,981.30 is: 412,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,268.72 : 517,823.40 = 298,981.30 : x
  2. Step 2: Convert to fraction form
    375,268.72/517,823.40 = 298,981.30/x
  3. Step 3: Cross multiply
    375,268.72x = 517,823.40 × 298,981.30
  4. Step 4: Simplify right side
    375,268.72x = 154,819,513,302.42
  5. Step 5: Solve for x
    x = 154,819,513,302.42/375,268.72
  6. Step 6: Final answer
    x = 412,556.40

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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.