Home / 210,514.20-290,423.56-155,455.44

Finding the Fourth Proportional to 210,514.20, 290,423.56 and 155,455.44

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Solution

The fourth proportional to 210,514.20, 290,423.56 and 155,455.44 is: 214,464.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,514.20 : 290,423.56 = 155,455.44 : x
  2. Step 2: Convert to fraction form
    210,514.20/290,423.56 = 155,455.44/x
  3. Step 3: Cross multiply
    210,514.20x = 290,423.56 × 155,455.44
  4. Step 4: Simplify right side
    210,514.20x = 45,147,922,306.17
  5. Step 5: Solve for x
    x = 45,147,922,306.17/210,514.20
  6. Step 6: Final answer
    x = 214,464.97

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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.