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Finding the Fourth Proportional to 248,707.02, 343,216.13 and 135,529.77

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Solution

The fourth proportional to 248,707.02, 343,216.13 and 135,529.77 is: 187,031.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,707.02 : 343,216.13 = 135,529.77 : x
  2. Step 2: Convert to fraction form
    248,707.02/343,216.13 = 135,529.77/x
  3. Step 3: Cross multiply
    248,707.02x = 343,216.13 × 135,529.77
  4. Step 4: Simplify right side
    248,707.02x = 46,516,003,159.19
  5. Step 5: Solve for x
    x = 46,516,003,159.19/248,707.02
  6. Step 6: Final answer
    x = 187,031.32

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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.