Home / 282,090.24-389,309.76-154,790.64

Finding the Fourth Proportional to 282,090.24, 389,309.76 and 154,790.64

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Solution

The fourth proportional to 282,090.24, 389,309.76 and 154,790.64 is: 213,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,090.24 : 389,309.76 = 154,790.64 : x
  2. Step 2: Convert to fraction form
    282,090.24/389,309.76 = 154,790.64/x
  3. Step 3: Cross multiply
    282,090.24x = 389,309.76 × 154,790.64
  4. Step 4: Simplify right side
    282,090.24x = 60,261,506,908.65
  5. Step 5: Solve for x
    x = 60,261,506,908.65/282,090.24
  6. Step 6: Final answer
    x = 213,624.93

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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.