Home / 203,256.02-304,826.45-128,263.79

Finding the Fourth Proportional to 203,256.02, 304,826.45 and 128,263.79

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Solution

The fourth proportional to 203,256.02, 304,826.45 and 128,263.79 is: 192,359.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,256.02 : 304,826.45 = 128,263.79 : x
  2. Step 2: Convert to fraction form
    203,256.02/304,826.45 = 128,263.79/x
  3. Step 3: Cross multiply
    203,256.02x = 304,826.45 × 128,263.79
  4. Step 4: Simplify right side
    203,256.02x = 39,098,193,603.79
  5. Step 5: Solve for x
    x = 39,098,193,603.79/203,256.02
  6. Step 6: Final answer
    x = 192,359.34

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1.5x scale

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.