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Finding the Fourth Proportional to 440,457.30, 660,729.60 and 140,862.60

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Solution

The fourth proportional to 440,457.30, 660,729.60 and 140,862.60 is: 211,307.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,457.30 : 660,729.60 = 140,862.60 : x
  2. Step 2: Convert to fraction form
    440,457.30/660,729.60 = 140,862.60/x
  3. Step 3: Cross multiply
    440,457.30x = 660,729.60 × 140,862.60
  4. Step 4: Simplify right side
    440,457.30x = 93,072,089,352.96
  5. Step 5: Solve for x
    x = 93,072,089,352.96/440,457.30
  6. Step 6: Final answer
    x = 211,307.86

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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.