Home / 221,859.04-306,130.08-126,367.60

Finding the Fourth Proportional to 221,859.04, 306,130.08 and 126,367.60

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Solution

The fourth proportional to 221,859.04, 306,130.08 and 126,367.60 is: 174,367.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,859.04 : 306,130.08 = 126,367.60 : x
  2. Step 2: Convert to fraction form
    221,859.04/306,130.08 = 126,367.60/x
  3. Step 3: Cross multiply
    221,859.04x = 306,130.08 × 126,367.60
  4. Step 4: Simplify right side
    221,859.04x = 38,684,923,497.41
  5. Step 5: Solve for x
    x = 38,684,923,497.41/221,859.04
  6. Step 6: Final answer
    x = 174,367.13

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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.