Home / 305,120.95-457,681.44-118,132.45

Finding the Fourth Proportional to 305,120.95, 457,681.44 and 118,132.45

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Solution

The fourth proportional to 305,120.95, 457,681.44 and 118,132.45 is: 177,198.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,120.95 : 457,681.44 = 118,132.45 : x
  2. Step 2: Convert to fraction form
    305,120.95/457,681.44 = 118,132.45/x
  3. Step 3: Cross multiply
    305,120.95x = 457,681.44 × 118,132.45
  4. Step 4: Simplify right side
    305,120.95x = 54,067,027,538.32
  5. Step 5: Solve for x
    x = 54,067,027,538.32/305,120.95
  6. Step 6: Final answer
    x = 177,198.68

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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.