Home / 288,455.02-398,059.55-159,391.45

Finding the Fourth Proportional to 288,455.02, 398,059.55 and 159,391.45

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Solution

The fourth proportional to 288,455.02, 398,059.55 and 159,391.45 is: 219,955.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,455.02 : 398,059.55 = 159,391.45 : x
  2. Step 2: Convert to fraction form
    288,455.02/398,059.55 = 159,391.45/x
  3. Step 3: Cross multiply
    288,455.02x = 398,059.55 × 159,391.45
  4. Step 4: Simplify right side
    288,455.02x = 63,447,288,860.85
  5. Step 5: Solve for x
    x = 63,447,288,860.85/288,455.02
  6. Step 6: Final answer
    x = 219,955.57

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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.