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Finding the Fourth Proportional to 201,913.70, 302,870.55 and 181,868.90

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Solution

The fourth proportional to 201,913.70, 302,870.55 and 181,868.90 is: 272,803.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,913.70 : 302,870.55 = 181,868.90 : x
  2. Step 2: Convert to fraction form
    201,913.70/302,870.55 = 181,868.90/x
  3. Step 3: Cross multiply
    201,913.70x = 302,870.55 × 181,868.90
  4. Step 4: Simplify right side
    201,913.70x = 55,082,733,770.90
  5. Step 5: Solve for x
    x = 55,082,733,770.90/201,913.70
  6. Step 6: Final answer
    x = 272,803.35

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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.