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Finding the Fourth Proportional to 285,586.06, 428,239.13 and 117,060.55

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Solution

The fourth proportional to 285,586.06, 428,239.13 and 117,060.55 is: 175,533.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,586.06 : 428,239.13 = 117,060.55 : x
  2. Step 2: Convert to fraction form
    285,586.06/428,239.13 = 117,060.55/x
  3. Step 3: Cross multiply
    285,586.06x = 428,239.13 × 117,060.55
  4. Step 4: Simplify right side
    285,586.06x = 50,129,908,089.32
  5. Step 5: Solve for x
    x = 50,129,908,089.32/285,586.06
  6. Step 6: Final answer
    x = 175,533.46

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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.