Home / 259,271.04-388,908.32-72,284.16

Finding the Fourth Proportional to 259,271.04, 388,908.32 and 72,284.16

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Solution

The fourth proportional to 259,271.04, 388,908.32 and 72,284.16 is: 108,426.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,271.04 : 388,908.32 = 72,284.16 : x
  2. Step 2: Convert to fraction form
    259,271.04/388,908.32 = 72,284.16/x
  3. Step 3: Cross multiply
    259,271.04x = 388,908.32 × 72,284.16
  4. Step 4: Simplify right side
    259,271.04x = 28,111,911,228.21
  5. Step 5: Solve for x
    x = 28,111,911,228.21/259,271.04
  6. Step 6: Final answer
    x = 108,426.73

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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.