Home / 388,988.20-536,271.06-245,676.52

Finding the Fourth Proportional to 388,988.20, 536,271.06 and 245,676.52

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Solution

The fourth proportional to 388,988.20, 536,271.06 and 245,676.52 is: 338,697.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,988.20 : 536,271.06 = 245,676.52 : x
  2. Step 2: Convert to fraction form
    388,988.20/536,271.06 = 245,676.52/x
  3. Step 3: Cross multiply
    388,988.20x = 536,271.06 × 245,676.52
  4. Step 4: Simplify right side
    388,988.20x = 131,749,207,797.51
  5. Step 5: Solve for x
    x = 131,749,207,797.51/388,988.20
  6. Step 6: Final answer
    x = 338,697.18

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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.