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Finding the Fourth Proportional to 440,456.76, 660,783.60 and 140,955.30

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Solution

The fourth proportional to 440,456.76, 660,783.60 and 140,955.30 is: 211,464.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,456.76 : 660,783.60 = 140,955.30 : x
  2. Step 2: Convert to fraction form
    440,456.76/660,783.60 = 140,955.30/x
  3. Step 3: Cross multiply
    440,456.76x = 660,783.60 × 140,955.30
  4. Step 4: Simplify right side
    440,456.76x = 93,140,950,573.08
  5. Step 5: Solve for x
    x = 93,140,950,573.08/440,456.76
  6. Step 6: Final answer
    x = 211,464.46

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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.