Home / 280,108.77-419,966.34-102,592.71

Finding the Fourth Proportional to 280,108.77, 419,966.34 and 102,592.71

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Solution

The fourth proportional to 280,108.77, 419,966.34 and 102,592.71 is: 153,816.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,108.77 : 419,966.34 = 102,592.71 : x
  2. Step 2: Convert to fraction form
    280,108.77/419,966.34 = 102,592.71/x
  3. Step 3: Cross multiply
    280,108.77x = 419,966.34 × 102,592.71
  4. Step 4: Simplify right side
    280,108.77x = 43,085,484,929.38
  5. Step 5: Solve for x
    x = 43,085,484,929.38/280,108.77
  6. Step 6: Final answer
    x = 153,816.98

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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.