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Finding the Fourth Proportional to 243,485.40, 365,055.30 and 93,667.80

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Solution

The fourth proportional to 243,485.40, 365,055.30 and 93,667.80 is: 140,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,485.40 : 365,055.30 = 93,667.80 : x
  2. Step 2: Convert to fraction form
    243,485.40/365,055.30 = 93,667.80/x
  3. Step 3: Cross multiply
    243,485.40x = 365,055.30 × 93,667.80
  4. Step 4: Simplify right side
    243,485.40x = 34,193,926,829.34
  5. Step 5: Solve for x
    x = 34,193,926,829.34/243,485.40
  6. Step 6: Final answer
    x = 140,435.22

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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.