Home / 343,190.45-473,442.63-215,936.21

Finding the Fourth Proportional to 343,190.45, 473,442.63 and 215,936.21

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Solution

The fourth proportional to 343,190.45, 473,442.63 and 215,936.21 is: 297,891.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,190.45 : 473,442.63 = 215,936.21 : x
  2. Step 2: Convert to fraction form
    343,190.45/473,442.63 = 215,936.21/x
  3. Step 3: Cross multiply
    343,190.45x = 473,442.63 × 215,936.21
  4. Step 4: Simplify right side
    343,190.45x = 102,233,406,582.83
  5. Step 5: Solve for x
    x = 102,233,406,582.83/343,190.45
  6. Step 6: Final answer
    x = 297,891.18

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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.