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Finding the Fourth Proportional to 424,588.65, 636,358.10 and 214,111.77

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Solution

The fourth proportional to 424,588.65, 636,358.10 and 214,111.77 is: 320,902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,588.65 : 636,358.10 = 214,111.77 : x
  2. Step 2: Convert to fraction form
    424,588.65/636,358.10 = 214,111.77/x
  3. Step 3: Cross multiply
    424,588.65x = 636,358.10 × 214,111.77
  4. Step 4: Simplify right side
    424,588.65x = 136,251,758,074.28
  5. Step 5: Solve for x
    x = 136,251,758,074.28/424,588.65
  6. Step 6: Final answer
    x = 320,902.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.