Home / 257,437.10-385,280.85-225,944.30

Finding the Fourth Proportional to 257,437.10, 385,280.85 and 225,944.30

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Solution

The fourth proportional to 257,437.10, 385,280.85 and 225,944.30 is: 338,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,437.10 : 385,280.85 = 225,944.30 : x
  2. Step 2: Convert to fraction form
    257,437.10/385,280.85 = 225,944.30/x
  3. Step 3: Cross multiply
    257,437.10x = 385,280.85 × 225,944.30
  4. Step 4: Simplify right side
    257,437.10x = 87,052,011,956.66
  5. Step 5: Solve for x
    x = 87,052,011,956.66/257,437.10
  6. Step 6: Final answer
    x = 338,148.67

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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.