Home / 288,013-431,975.68-110,603.56

Finding the Fourth Proportional to 288,013, 431,975.68 and 110,603.56

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Solution

The fourth proportional to 288,013, 431,975.68 and 110,603.56 is: 165,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,013 : 431,975.68 = 110,603.56 : x
  2. Step 2: Convert to fraction form
    288,013/431,975.68 = 110,603.56/x
  3. Step 3: Cross multiply
    288,013x = 431,975.68 × 110,603.56
  4. Step 4: Simplify right side
    288,013x = 47,778,048,041.42
  5. Step 5: Solve for x
    x = 47,778,048,041.42/288,013
  6. Step 6: Final answer
    x = 165,888.51

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1.5x scale

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.