Home / 239,439.04-330,639.47-228,095.80

Finding the Fourth Proportional to 239,439.04, 330,639.47 and 228,095.80

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Solution

The fourth proportional to 239,439.04, 330,639.47 and 228,095.80 is: 314,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,439.04 : 330,639.47 = 228,095.80 : x
  2. Step 2: Convert to fraction form
    239,439.04/330,639.47 = 228,095.80/x
  3. Step 3: Cross multiply
    239,439.04x = 330,639.47 × 228,095.80
  4. Step 4: Simplify right side
    239,439.04x = 75,417,473,309.51
  5. Step 5: Solve for x
    x = 75,417,473,309.51/239,439.04
  6. Step 6: Final answer
    x = 314,975.68

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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.