Home / 331,929.17-458,060.16-188,689.21

Finding the Fourth Proportional to 331,929.17, 458,060.16 and 188,689.21

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Solution

The fourth proportional to 331,929.17, 458,060.16 and 188,689.21 is: 260,389.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,929.17 : 458,060.16 = 188,689.21 : x
  2. Step 2: Convert to fraction form
    331,929.17/458,060.16 = 188,689.21/x
  3. Step 3: Cross multiply
    331,929.17x = 458,060.16 × 188,689.21
  4. Step 4: Simplify right side
    331,929.17x = 86,431,009,722.87
  5. Step 5: Solve for x
    x = 86,431,009,722.87/331,929.17
  6. Step 6: Final answer
    x = 260,389.92

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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.