Home / 253,585.32-380,415.08-76,106.36

Finding the Fourth Proportional to 253,585.32, 380,415.08 and 76,106.36

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Solution

The fourth proportional to 253,585.32, 380,415.08 and 76,106.36 is: 114,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,585.32 : 380,415.08 = 76,106.36 : x
  2. Step 2: Convert to fraction form
    253,585.32/380,415.08 = 76,106.36/x
  3. Step 3: Cross multiply
    253,585.32x = 380,415.08 × 76,106.36
  4. Step 4: Simplify right side
    253,585.32x = 28,952,007,027.91
  5. Step 5: Solve for x
    x = 28,952,007,027.91/253,585.32
  6. Step 6: Final answer
    x = 114,170.67

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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.