Home / 286,533.18-429,652.08-128,626.38

Finding the Fourth Proportional to 286,533.18, 429,652.08 and 128,626.38

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Solution

The fourth proportional to 286,533.18, 429,652.08 and 128,626.38 is: 192,873.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,533.18 : 429,652.08 = 128,626.38 : x
  2. Step 2: Convert to fraction form
    286,533.18/429,652.08 = 128,626.38/x
  3. Step 3: Cross multiply
    286,533.18x = 429,652.08 × 128,626.38
  4. Step 4: Simplify right side
    286,533.18x = 55,264,591,709.87
  5. Step 5: Solve for x
    x = 55,264,591,709.87/286,533.18
  6. Step 6: Final answer
    x = 192,873.27

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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.