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Finding the Fourth Proportional to 611,442.65, 916,228.71 and 256,262.91

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Solution

The fourth proportional to 611,442.65, 916,228.71 and 256,262.91 is: 384,002.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,442.65 : 916,228.71 = 256,262.91 : x
  2. Step 2: Convert to fraction form
    611,442.65/916,228.71 = 256,262.91/x
  3. Step 3: Cross multiply
    611,442.65x = 916,228.71 × 256,262.91
  4. Step 4: Simplify right side
    611,442.65x = 234,795,435,450.15
  5. Step 5: Solve for x
    x = 234,795,435,450.15/611,442.65
  6. Step 6: Final answer
    x = 384,002.39

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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.