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Finding the Fourth Proportional to 268,137.96, 370,056.08 and 153,393.81

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Solution

The fourth proportional to 268,137.96, 370,056.08 and 153,393.81 is: 211,698.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,137.96 : 370,056.08 = 153,393.81 : x
  2. Step 2: Convert to fraction form
    268,137.96/370,056.08 = 153,393.81/x
  3. Step 3: Cross multiply
    268,137.96x = 370,056.08 × 153,393.81
  4. Step 4: Simplify right side
    268,137.96x = 56,764,312,024.86
  5. Step 5: Solve for x
    x = 56,764,312,024.86/268,137.96
  6. Step 6: Final answer
    x = 211,698.16

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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.