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Finding the Fourth Proportional to 235,729.64, 325,302.36 and 128,302.04

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Solution

The fourth proportional to 235,729.64, 325,302.36 and 128,302.04 is: 177,054.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,729.64 : 325,302.36 = 128,302.04 : x
  2. Step 2: Convert to fraction form
    235,729.64/325,302.36 = 128,302.04/x
  3. Step 3: Cross multiply
    235,729.64x = 325,302.36 × 128,302.04
  4. Step 4: Simplify right side
    235,729.64x = 41,736,956,404.81
  5. Step 5: Solve for x
    x = 41,736,956,404.81/235,729.64
  6. Step 6: Final answer
    x = 177,054.34

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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.