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Finding the Fourth Proportional to 235,682.36, 325,248.48 and 128,259.32

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Solution

The fourth proportional to 235,682.36, 325,248.48 and 128,259.32 is: 177,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,682.36 : 325,248.48 = 128,259.32 : x
  2. Step 2: Convert to fraction form
    235,682.36/325,248.48 = 128,259.32/x
  3. Step 3: Cross multiply
    235,682.36x = 325,248.48 × 128,259.32
  4. Step 4: Simplify right side
    235,682.36x = 41,716,148,875.83
  5. Step 5: Solve for x
    x = 41,716,148,875.83/235,682.36
  6. Step 6: Final answer
    x = 177,001.57

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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.