Home / 255,021.84-351,923.07-138,731.46

Finding the Fourth Proportional to 255,021.84, 351,923.07 and 138,731.46

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Solution

The fourth proportional to 255,021.84, 351,923.07 and 138,731.46 is: 191,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,021.84 : 351,923.07 = 138,731.46 : x
  2. Step 2: Convert to fraction form
    255,021.84/351,923.07 = 138,731.46/x
  3. Step 3: Cross multiply
    255,021.84x = 351,923.07 × 138,731.46
  4. Step 4: Simplify right side
    255,021.84x = 48,822,800,509.31
  5. Step 5: Solve for x
    x = 48,822,800,509.31/255,021.84
  6. Step 6: Final answer
    x = 191,445.57

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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.