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Finding the Fourth Proportional to 270,156.16, 405,234.46 and 70,476.32

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Solution

The fourth proportional to 270,156.16, 405,234.46 and 70,476.32 is: 105,714.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,156.16 : 405,234.46 = 70,476.32 : x
  2. Step 2: Convert to fraction form
    270,156.16/405,234.46 = 70,476.32/x
  3. Step 3: Cross multiply
    270,156.16x = 405,234.46 × 70,476.32
  4. Step 4: Simplify right side
    270,156.16x = 28,559,433,477.99
  5. Step 5: Solve for x
    x = 28,559,433,477.99/270,156.16
  6. Step 6: Final answer
    x = 105,714.54

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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.