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Finding the Fourth Proportional to 243,475.36, 365,231.42 and 72,683.60

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Solution

The fourth proportional to 243,475.36, 365,231.42 and 72,683.60 is: 109,030.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,475.36 : 365,231.42 = 72,683.60 : x
  2. Step 2: Convert to fraction form
    243,475.36/365,231.42 = 72,683.60/x
  3. Step 3: Cross multiply
    243,475.36x = 365,231.42 × 72,683.60
  4. Step 4: Simplify right side
    243,475.36x = 26,546,334,438.71
  5. Step 5: Solve for x
    x = 26,546,334,438.71/243,475.36
  6. Step 6: Final answer
    x = 109,030.89

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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.