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Finding the Fourth Proportional to 366,708.42, 549,636.93 and 138,859.16

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Solution

The fourth proportional to 366,708.42, 549,636.93 and 138,859.16 is: 208,127.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,708.42 : 549,636.93 = 138,859.16 : x
  2. Step 2: Convert to fraction form
    366,708.42/549,636.93 = 138,859.16/x
  3. Step 3: Cross multiply
    366,708.42x = 549,636.93 × 138,859.16
  4. Step 4: Simplify right side
    366,708.42x = 76,322,119,656.59
  5. Step 5: Solve for x
    x = 76,322,119,656.59/366,708.42
  6. Step 6: Final answer
    x = 208,127.54

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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.