Home / 280,004.24-419,875.01-102,387.05

Finding the Fourth Proportional to 280,004.24, 419,875.01 and 102,387.05

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Solution

The fourth proportional to 280,004.24, 419,875.01 and 102,387.05 is: 153,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,004.24 : 419,875.01 = 102,387.05 : x
  2. Step 2: Convert to fraction form
    280,004.24/419,875.01 = 102,387.05/x
  3. Step 3: Cross multiply
    280,004.24x = 419,875.01 × 102,387.05
  4. Step 4: Simplify right side
    280,004.24x = 42,989,763,130.69
  5. Step 5: Solve for x
    x = 42,989,763,130.69/280,004.24
  6. Step 6: Final answer
    x = 153,532.54

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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.