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Finding the Fourth Proportional to 343,521.60, 473,623.90 and 245,521.80

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Solution

The fourth proportional to 343,521.60, 473,623.90 and 245,521.80 is: 338,508.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,521.60 : 473,623.90 = 245,521.80 : x
  2. Step 2: Convert to fraction form
    343,521.60/473,623.90 = 245,521.80/x
  3. Step 3: Cross multiply
    343,521.60x = 473,623.90 × 245,521.80
  4. Step 4: Simplify right side
    343,521.60x = 116,284,992,451.02
  5. Step 5: Solve for x
    x = 116,284,992,451.02/343,521.60
  6. Step 6: Final answer
    x = 338,508.53

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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.