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Finding the Fourth Proportional to 235,914.59, 325,565.83 and 128,484.53

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Solution

The fourth proportional to 235,914.59, 325,565.83 and 128,484.53 is: 177,310.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,914.59 : 325,565.83 = 128,484.53 : x
  2. Step 2: Convert to fraction form
    235,914.59/325,565.83 = 128,484.53/x
  3. Step 3: Cross multiply
    235,914.59x = 325,565.83 × 128,484.53
  4. Step 4: Simplify right side
    235,914.59x = 41,830,172,405.26
  5. Step 5: Solve for x
    x = 41,830,172,405.26/235,914.59
  6. Step 6: Final answer
    x = 177,310.67

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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.