Home / 282,073.40-389,271.38-154,752.68

Finding the Fourth Proportional to 282,073.40, 389,271.38 and 154,752.68

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Solution

The fourth proportional to 282,073.40, 389,271.38 and 154,752.68 is: 213,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,073.40 : 389,271.38 = 154,752.68 : x
  2. Step 2: Convert to fraction form
    282,073.40/389,271.38 = 154,752.68/x
  3. Step 3: Cross multiply
    282,073.40x = 389,271.38 × 154,752.68
  4. Step 4: Simplify right side
    282,073.40x = 60,240,789,302.30
  5. Step 5: Solve for x
    x = 60,240,789,302.30/282,073.40
  6. Step 6: Final answer
    x = 213,564.23

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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.