Home / 343,977.12-515,756.09-154,400.67

Finding the Fourth Proportional to 343,977.12, 515,756.09 and 154,400.67

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Solution

The fourth proportional to 343,977.12, 515,756.09 and 154,400.67 is: 231,506.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,977.12 : 515,756.09 = 154,400.67 : x
  2. Step 2: Convert to fraction form
    343,977.12/515,756.09 = 154,400.67/x
  3. Step 3: Cross multiply
    343,977.12x = 515,756.09 × 154,400.67
  4. Step 4: Simplify right side
    343,977.12x = 79,633,085,080.58
  5. Step 5: Solve for x
    x = 79,633,085,080.58/343,977.12
  6. Step 6: Final answer
    x = 231,506.92

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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.