Home / 286,725.72-430,140.30-118,152.22

Finding the Fourth Proportional to 286,725.72, 430,140.30 and 118,152.22

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Solution

The fourth proportional to 286,725.72, 430,140.30 and 118,152.22 is: 177,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,725.72 : 430,140.30 = 118,152.22 : x
  2. Step 2: Convert to fraction form
    286,725.72/430,140.30 = 118,152.22/x
  3. Step 3: Cross multiply
    286,725.72x = 430,140.30 × 118,152.22
  4. Step 4: Simplify right side
    286,725.72x = 50,822,030,976.86
  5. Step 5: Solve for x
    x = 50,822,030,976.86/286,725.72
  6. Step 6: Final answer
    x = 177,249.64

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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.