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Finding the Fourth Proportional to 345,514.76, 477,104.23 and 216,669.03

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Solution

The fourth proportional to 345,514.76, 477,104.23 and 216,669.03 is: 299,187.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,514.76 : 477,104.23 = 216,669.03 : x
  2. Step 2: Convert to fraction form
    345,514.76/477,104.23 = 216,669.03/x
  3. Step 3: Cross multiply
    345,514.76x = 477,104.23 × 216,669.03
  4. Step 4: Simplify right side
    345,514.76x = 103,373,707,985.93
  5. Step 5: Solve for x
    x = 103,373,707,985.93/345,514.76
  6. Step 6: Final answer
    x = 299,187.53

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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.