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Finding the Fourth Proportional to 415,970.56, 624,066.48 and 131,666.56

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Solution

The fourth proportional to 415,970.56, 624,066.48 and 131,666.56 is: 197,534.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,970.56 : 624,066.48 = 131,666.56 : x
  2. Step 2: Convert to fraction form
    415,970.56/624,066.48 = 131,666.56/x
  3. Step 3: Cross multiply
    415,970.56x = 624,066.48 × 131,666.56
  4. Step 4: Simplify right side
    415,970.56x = 82,168,686,632.91
  5. Step 5: Solve for x
    x = 82,168,686,632.91/415,970.56
  6. Step 6: Final answer
    x = 197,534.86

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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.