Home / 280,434.84-419,981.85-161,746.35

Finding the Fourth Proportional to 280,434.84, 419,981.85 and 161,746.35

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Solution

The fourth proportional to 280,434.84, 419,981.85 and 161,746.35 is: 242,232.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,434.84 : 419,981.85 = 161,746.35 : x
  2. Step 2: Convert to fraction form
    280,434.84/419,981.85 = 161,746.35/x
  3. Step 3: Cross multiply
    280,434.84x = 419,981.85 × 161,746.35
  4. Step 4: Simplify right side
    280,434.84x = 67,930,531,303.75
  5. Step 5: Solve for x
    x = 67,930,531,303.75/280,434.84
  6. Step 6: Final answer
    x = 242,232.85

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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.