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Finding the Fourth Proportional to 235,607.58, 325,131.06 and 128,174.88

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Solution

The fourth proportional to 235,607.58, 325,131.06 and 128,174.88 is: 176,877.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,607.58 : 325,131.06 = 128,174.88 : x
  2. Step 2: Convert to fraction form
    235,607.58/325,131.06 = 128,174.88/x
  3. Step 3: Cross multiply
    235,607.58x = 325,131.06 × 128,174.88
  4. Step 4: Simplify right side
    235,607.58x = 41,673,634,599.77
  5. Step 5: Solve for x
    x = 41,673,634,599.77/235,607.58
  6. Step 6: Final answer
    x = 176,877.31

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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.