Home / 397,111.29-548,013.58-215,823.65

Finding the Fourth Proportional to 397,111.29, 548,013.58 and 215,823.65

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Solution

The fourth proportional to 397,111.29, 548,013.58 and 215,823.65 is: 297,836.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,111.29 : 548,013.58 = 215,823.65 : x
  2. Step 2: Convert to fraction form
    397,111.29/548,013.58 = 215,823.65/x
  3. Step 3: Cross multiply
    397,111.29x = 548,013.58 × 215,823.65
  4. Step 4: Simplify right side
    397,111.29x = 118,274,291,085.17
  5. Step 5: Solve for x
    x = 118,274,291,085.17/397,111.29
  6. Step 6: Final answer
    x = 297,836.64

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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.