Home / 239,303.45-330,234.51-130,408.76

Finding the Fourth Proportional to 239,303.45, 330,234.51 and 130,408.76

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Solution

The fourth proportional to 239,303.45, 330,234.51 and 130,408.76 is: 179,961.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,303.45 : 330,234.51 = 130,408.76 : x
  2. Step 2: Convert to fraction form
    239,303.45/330,234.51 = 130,408.76/x
  3. Step 3: Cross multiply
    239,303.45x = 330,234.51 × 130,408.76
  4. Step 4: Simplify right side
    239,303.45x = 43,065,473,783.89
  5. Step 5: Solve for x
    x = 43,065,473,783.89/239,303.45
  6. Step 6: Final answer
    x = 179,961.77

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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.