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Finding the Fourth Proportional to 248,342.16, 342,778.08 and 152,928.81

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Solution

The fourth proportional to 248,342.16, 342,778.08 and 152,928.81 is: 211,082.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,342.16 : 342,778.08 = 152,928.81 : x
  2. Step 2: Convert to fraction form
    248,342.16/342,778.08 = 152,928.81/x
  3. Step 3: Cross multiply
    248,342.16x = 342,778.08 × 152,928.81
  4. Step 4: Simplify right side
    248,342.16x = 52,420,643,868.48
  5. Step 5: Solve for x
    x = 52,420,643,868.48/248,342.16
  6. Step 6: Final answer
    x = 211,082.34

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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.