Home / 197,406.72-272,367.36-112,492.80

Finding the Fourth Proportional to 197,406.72, 272,367.36 and 112,492.80

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Solution

The fourth proportional to 197,406.72, 272,367.36 and 112,492.80 is: 155,209.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,406.72 : 272,367.36 = 112,492.80 : x
  2. Step 2: Convert to fraction form
    197,406.72/272,367.36 = 112,492.80/x
  3. Step 3: Cross multiply
    197,406.72x = 272,367.36 × 112,492.80
  4. Step 4: Simplify right side
    197,406.72x = 30,639,366,955.01
  5. Step 5: Solve for x
    x = 30,639,366,955.01/197,406.72
  6. Step 6: Final answer
    x = 155,209.34

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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.