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Finding the Fourth Proportional to 235,382.64, 324,803.76 and 139,870.89

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Solution

The fourth proportional to 235,382.64, 324,803.76 and 139,870.89 is: 193,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,382.64 : 324,803.76 = 139,870.89 : x
  2. Step 2: Convert to fraction form
    235,382.64/324,803.76 = 139,870.89/x
  3. Step 3: Cross multiply
    235,382.64x = 324,803.76 × 139,870.89
  4. Step 4: Simplify right side
    235,382.64x = 45,430,590,986.55
  5. Step 5: Solve for x
    x = 45,430,590,986.55/235,382.64
  6. Step 6: Final answer
    x = 193,007.40

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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.