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Finding the Fourth Proportional to 262,885.70, 394,328.55 and 178,904.90

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Solution

The fourth proportional to 262,885.70, 394,328.55 and 178,904.90 is: 268,357.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,885.70 : 394,328.55 = 178,904.90 : x
  2. Step 2: Convert to fraction form
    262,885.70/394,328.55 = 178,904.90/x
  3. Step 3: Cross multiply
    262,885.70x = 394,328.55 × 178,904.90
  4. Step 4: Simplify right side
    262,885.70x = 70,547,309,804.90
  5. Step 5: Solve for x
    x = 70,547,309,804.90/262,885.70
  6. Step 6: Final answer
    x = 268,357.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.