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Finding the Fourth Proportional to 370,410.48, 555,234.34 and 145,679.83

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Solution

The fourth proportional to 370,410.48, 555,234.34 and 145,679.83 is: 218,369.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,410.48 : 555,234.34 = 145,679.83 : x
  2. Step 2: Convert to fraction form
    370,410.48/555,234.34 = 145,679.83/x
  3. Step 3: Cross multiply
    370,410.48x = 555,234.34 × 145,679.83
  4. Step 4: Simplify right side
    370,410.48x = 80,886,444,261.36
  5. Step 5: Solve for x
    x = 80,886,444,261.36/370,410.48
  6. Step 6: Final answer
    x = 218,369.75

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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.