Home / 345,002.24-476,021.74-290,020.66

Finding the Fourth Proportional to 345,002.24, 476,021.74 and 290,020.66

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Solution

The fourth proportional to 345,002.24, 476,021.74 and 290,020.66 is: 400,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,002.24 : 476,021.74 = 290,020.66 : x
  2. Step 2: Convert to fraction form
    345,002.24/476,021.74 = 290,020.66/x
  3. Step 3: Cross multiply
    345,002.24x = 476,021.74 × 290,020.66
  4. Step 4: Simplify right side
    345,002.24x = 138,056,139,209.15
  5. Step 5: Solve for x
    x = 138,056,139,209.15/345,002.24
  6. Step 6: Final answer
    x = 400,160.12

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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.