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Finding the Fourth Proportional to 243,303.37, 335,763.69 and 135,873.51

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Solution

The fourth proportional to 243,303.37, 335,763.69 and 135,873.51 is: 187,508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,303.37 : 335,763.69 = 135,873.51 : x
  2. Step 2: Convert to fraction form
    243,303.37/335,763.69 = 135,873.51/x
  3. Step 3: Cross multiply
    243,303.37x = 335,763.69 × 135,873.51
  4. Step 4: Simplify right side
    243,303.37x = 45,621,391,090.85
  5. Step 5: Solve for x
    x = 45,621,391,090.85/243,303.37
  6. Step 6: Final answer
    x = 187,508.26

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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.