Home / 330,467.04-495,420.30-130,928.40

Finding the Fourth Proportional to 330,467.04, 495,420.30 and 130,928.40

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Solution

The fourth proportional to 330,467.04, 495,420.30 and 130,928.40 is: 196,281.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,467.04 : 495,420.30 = 130,928.40 : x
  2. Step 2: Convert to fraction form
    330,467.04/495,420.30 = 130,928.40/x
  3. Step 3: Cross multiply
    330,467.04x = 495,420.30 × 130,928.40
  4. Step 4: Simplify right side
    330,467.04x = 64,864,587,206.52
  5. Step 5: Solve for x
    x = 64,864,587,206.52/330,467.04
  6. Step 6: Final answer
    x = 196,281.56

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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.