Home / 228,631.71-315,510.74-131,835.09

Finding the Fourth Proportional to 228,631.71, 315,510.74 and 131,835.09

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Solution

The fourth proportional to 228,631.71, 315,510.74 and 131,835.09 is: 181,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,631.71 : 315,510.74 = 131,835.09 : x
  2. Step 2: Convert to fraction form
    228,631.71/315,510.74 = 131,835.09/x
  3. Step 3: Cross multiply
    228,631.71x = 315,510.74 × 131,835.09
  4. Step 4: Simplify right side
    228,631.71x = 41,595,388,563.81
  5. Step 5: Solve for x
    x = 41,595,388,563.81/228,631.71
  6. Step 6: Final answer
    x = 181,931.84

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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.