Home / 216,153.93-298,280.04-120,666.67

Finding the Fourth Proportional to 216,153.93, 298,280.04 and 120,666.67

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Solution

The fourth proportional to 216,153.93, 298,280.04 and 120,666.67 is: 166,513.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,153.93 : 298,280.04 = 120,666.67 : x
  2. Step 2: Convert to fraction form
    216,153.93/298,280.04 = 120,666.67/x
  3. Step 3: Cross multiply
    216,153.93x = 298,280.04 × 120,666.67
  4. Step 4: Simplify right side
    216,153.93x = 35,992,459,154.27
  5. Step 5: Solve for x
    x = 35,992,459,154.27/216,153.93
  6. Step 6: Final answer
    x = 166,513.09

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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.