Home / 389,708.22-537,739.65-236,666.64

Finding the Fourth Proportional to 389,708.22, 537,739.65 and 236,666.64

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Solution

The fourth proportional to 389,708.22, 537,739.65 and 236,666.64 is: 326,564.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,708.22 : 537,739.65 = 236,666.64 : x
  2. Step 2: Convert to fraction form
    389,708.22/537,739.65 = 236,666.64/x
  3. Step 3: Cross multiply
    389,708.22x = 537,739.65 × 236,666.64
  4. Step 4: Simplify right side
    389,708.22x = 127,265,036,160.28
  5. Step 5: Solve for x
    x = 127,265,036,160.28/389,708.22
  6. Step 6: Final answer
    x = 326,564.93

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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.