Home / 245,721.80-368,582.39-77,256.83

Finding the Fourth Proportional to 245,721.80, 368,582.39 and 77,256.83

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Solution

The fourth proportional to 245,721.80, 368,582.39 and 77,256.83 is: 115,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,721.80 : 368,582.39 = 77,256.83 : x
  2. Step 2: Convert to fraction form
    245,721.80/368,582.39 = 77,256.83/x
  3. Step 3: Cross multiply
    245,721.80x = 368,582.39 × 77,256.83
  4. Step 4: Simplify right side
    245,721.80x = 28,475,507,870.11
  5. Step 5: Solve for x
    x = 28,475,507,870.11/245,721.80
  6. Step 6: Final answer
    x = 115,885.15

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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.