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Finding the Fourth Proportional to 154,830.30, 232,245.45 and 84,846.30

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Solution

The fourth proportional to 154,830.30, 232,245.45 and 84,846.30 is: 127,269.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,830.30 : 232,245.45 = 84,846.30 : x
  2. Step 2: Convert to fraction form
    154,830.30/232,245.45 = 84,846.30/x
  3. Step 3: Cross multiply
    154,830.30x = 232,245.45 × 84,846.30
  4. Step 4: Simplify right side
    154,830.30x = 19,705,167,124.34
  5. Step 5: Solve for x
    x = 19,705,167,124.34/154,830.30
  6. Step 6: Final answer
    x = 127,269.45

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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.