Home / 353,135.10-487,324.04-191,990.16

Finding the Fourth Proportional to 353,135.10, 487,324.04 and 191,990.16

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Solution

The fourth proportional to 353,135.10, 487,324.04 and 191,990.16 is: 264,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,135.10 : 487,324.04 = 191,990.16 : x
  2. Step 2: Convert to fraction form
    353,135.10/487,324.04 = 191,990.16/x
  3. Step 3: Cross multiply
    353,135.10x = 487,324.04 × 191,990.16
  4. Step 4: Simplify right side
    353,135.10x = 93,561,420,411.45
  5. Step 5: Solve for x
    x = 93,561,420,411.45/353,135.10
  6. Step 6: Final answer
    x = 264,945.12

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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.