Home / 261,938.51-361,518.63-154,534.94

Finding the Fourth Proportional to 261,938.51, 361,518.63 and 154,534.94

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Solution

The fourth proportional to 261,938.51, 361,518.63 and 154,534.94 is: 213,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,938.51 : 361,518.63 = 154,534.94 : x
  2. Step 2: Convert to fraction form
    261,938.51/361,518.63 = 154,534.94/x
  3. Step 3: Cross multiply
    261,938.51x = 361,518.63 × 154,534.94
  4. Step 4: Simplify right side
    261,938.51x = 55,867,259,795.93
  5. Step 5: Solve for x
    x = 55,867,259,795.93/261,938.51
  6. Step 6: Final answer
    x = 213,283.87

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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.