Home / 309,406.04-464,241.40-129,533.49

Finding the Fourth Proportional to 309,406.04, 464,241.40 and 129,533.49

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Solution

The fourth proportional to 309,406.04, 464,241.40 and 129,533.49 is: 194,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,406.04 : 464,241.40 = 129,533.49 : x
  2. Step 2: Convert to fraction form
    309,406.04/464,241.40 = 129,533.49/x
  3. Step 3: Cross multiply
    309,406.04x = 464,241.40 × 129,533.49
  4. Step 4: Simplify right side
    309,406.04x = 60,134,808,420.65
  5. Step 5: Solve for x
    x = 60,134,808,420.65/309,406.04
  6. Step 6: Final answer
    x = 194,355.64

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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.