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Finding the Fourth Proportional to 341,483.77, 470,809.50 and 280,003.43

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Solution

The fourth proportional to 341,483.77, 470,809.50 and 280,003.43 is: 386,045.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,483.77 : 470,809.50 = 280,003.43 : x
  2. Step 2: Convert to fraction form
    341,483.77/470,809.50 = 280,003.43/x
  3. Step 3: Cross multiply
    341,483.77x = 470,809.50 × 280,003.43
  4. Step 4: Simplify right side
    341,483.77x = 131,828,274,876.59
  5. Step 5: Solve for x
    x = 131,828,274,876.59/341,483.77
  6. Step 6: Final answer
    x = 386,045.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.