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Finding the Fourth Proportional to 443,486.96, 612,011.80 and 239,537.84

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Solution

The fourth proportional to 443,486.96, 612,011.80 and 239,537.84 is: 330,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,486.96 : 612,011.80 = 239,537.84 : x
  2. Step 2: Convert to fraction form
    443,486.96/612,011.80 = 239,537.84/x
  3. Step 3: Cross multiply
    443,486.96x = 612,011.80 × 239,537.84
  4. Step 4: Simplify right side
    443,486.96x = 146,599,984,626.51
  5. Step 5: Solve for x
    x = 146,599,984,626.51/443,486.96
  6. Step 6: Final answer
    x = 330,562.11

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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.