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Finding the Fourth Proportional to 610,561.29, 915,611.88 and 255,599.85

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Solution

The fourth proportional to 610,561.29, 915,611.88 and 255,599.85 is: 383,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,561.29 : 915,611.88 = 255,599.85 : x
  2. Step 2: Convert to fraction form
    610,561.29/915,611.88 = 255,599.85/x
  3. Step 3: Cross multiply
    610,561.29x = 915,611.88 × 255,599.85
  4. Step 4: Simplify right side
    610,561.29x = 234,030,259,186.22
  5. Step 5: Solve for x
    x = 234,030,259,186.22/610,561.29
  6. Step 6: Final answer
    x = 383,303.47

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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.