Home / 282,821.90-390,271.10-166,516.97

Finding the Fourth Proportional to 282,821.90, 390,271.10 and 166,516.97

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Solution

The fourth proportional to 282,821.90, 390,271.10 and 166,516.97 is: 229,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,821.90 : 390,271.10 = 166,516.97 : x
  2. Step 2: Convert to fraction form
    282,821.90/390,271.10 = 166,516.97/x
  3. Step 3: Cross multiply
    282,821.90x = 390,271.10 × 166,516.97
  4. Step 4: Simplify right side
    282,821.90x = 64,986,758,266.63
  5. Step 5: Solve for x
    x = 64,986,758,266.63/282,821.90
  6. Step 6: Final answer
    x = 229,779.80

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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.