Home / 309,946.30-464,919.45-257,458.30

Finding the Fourth Proportional to 309,946.30, 464,919.45 and 257,458.30

Calculator

Solution

The fourth proportional to 309,946.30, 464,919.45 and 257,458.30 is: 386,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,946.30 : 464,919.45 = 257,458.30 : x
  2. Step 2: Convert to fraction form
    309,946.30/464,919.45 = 257,458.30/x
  3. Step 3: Cross multiply
    309,946.30x = 464,919.45 × 257,458.30
  4. Step 4: Simplify right side
    309,946.30x = 119,697,371,233.94
  5. Step 5: Solve for x
    x = 119,697,371,233.94/309,946.30
  6. Step 6: Final answer
    x = 386,187.45

Related Problems

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.