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Finding the Fourth Proportional to 243,323.62, 335,779.77 and 135,890.50

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Solution

The fourth proportional to 243,323.62, 335,779.77 and 135,890.50 is: 187,525.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,323.62 : 335,779.77 = 135,890.50 : x
  2. Step 2: Convert to fraction form
    243,323.62/335,779.77 = 135,890.50/x
  3. Step 3: Cross multiply
    243,323.62x = 335,779.77 × 135,890.50
  4. Step 4: Simplify right side
    243,323.62x = 45,629,280,835.19
  5. Step 5: Solve for x
    x = 45,629,280,835.19/243,323.62
  6. Step 6: Final answer
    x = 187,525.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.