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Finding the Fourth Proportional to 440,021.94, 660,027.34 and 140,498.72

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Solution

The fourth proportional to 440,021.94, 660,027.34 and 140,498.72 is: 210,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,021.94 : 660,027.34 = 140,498.72 : x
  2. Step 2: Convert to fraction form
    440,021.94/660,027.34 = 140,498.72/x
  3. Step 3: Cross multiply
    440,021.94x = 660,027.34 × 140,498.72
  4. Step 4: Simplify right side
    440,021.94x = 92,732,996,435.00
  5. Step 5: Solve for x
    x = 92,732,996,435.00/440,021.94
  6. Step 6: Final answer
    x = 210,746.30

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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.