Home / 228,988.12-315,939-148,419.04

Finding the Fourth Proportional to 228,988.12, 315,939 and 148,419.04

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Solution

The fourth proportional to 228,988.12, 315,939 and 148,419.04 is: 204,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,988.12 : 315,939 = 148,419.04 : x
  2. Step 2: Convert to fraction form
    228,988.12/315,939 = 148,419.04/x
  3. Step 3: Cross multiply
    228,988.12x = 315,939 × 148,419.04
  4. Step 4: Simplify right side
    228,988.12x = 46,891,363,078.56
  5. Step 5: Solve for x
    x = 46,891,363,078.56/228,988.12
  6. Step 6: Final answer
    x = 204,776.40

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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.