Home / 282,421.80-423,499.05-164,129.40

Finding the Fourth Proportional to 282,421.80, 423,499.05 and 164,129.40

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Solution

The fourth proportional to 282,421.80, 423,499.05 and 164,129.40 is: 246,116.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,421.80 : 423,499.05 = 164,129.40 : x
  2. Step 2: Convert to fraction form
    282,421.80/423,499.05 = 164,129.40/x
  3. Step 3: Cross multiply
    282,421.80x = 423,499.05 × 164,129.40
  4. Step 4: Simplify right side
    282,421.80x = 69,508,644,977.07
  5. Step 5: Solve for x
    x = 69,508,644,977.07/282,421.80
  6. Step 6: Final answer
    x = 246,116.43

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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.