Home / 239,384.79-330,351.89-130,488.57

Finding the Fourth Proportional to 239,384.79, 330,351.89 and 130,488.57

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Solution

The fourth proportional to 239,384.79, 330,351.89 and 130,488.57 is: 180,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,384.79 : 330,351.89 = 130,488.57 : x
  2. Step 2: Convert to fraction form
    239,384.79/330,351.89 = 130,488.57/x
  3. Step 3: Cross multiply
    239,384.79x = 330,351.89 × 130,488.57
  4. Step 4: Simplify right side
    239,384.79x = 43,107,145,070.45
  5. Step 5: Solve for x
    x = 43,107,145,070.45/239,384.79
  6. Step 6: Final answer
    x = 180,074.70

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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.