Home / 283,123.08-390,711.24-162,271.56

Finding the Fourth Proportional to 283,123.08, 390,711.24 and 162,271.56

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Solution

The fourth proportional to 283,123.08, 390,711.24 and 162,271.56 is: 223,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,123.08 : 390,711.24 = 162,271.56 : x
  2. Step 2: Convert to fraction form
    283,123.08/390,711.24 = 162,271.56/x
  3. Step 3: Cross multiply
    283,123.08x = 390,711.24 × 162,271.56
  4. Step 4: Simplify right side
    283,123.08x = 63,401,322,424.33
  5. Step 5: Solve for x
    x = 63,401,322,424.33/283,123.08
  6. Step 6: Final answer
    x = 223,935.55

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1.5x scale

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.