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Finding the Fourth Proportional to 343,179.75, 473,588.06 and 209,043.75

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Solution

The fourth proportional to 343,179.75, 473,588.06 and 209,043.75 is: 288,480.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,179.75 : 473,588.06 = 209,043.75 : x
  2. Step 2: Convert to fraction form
    343,179.75/473,588.06 = 209,043.75/x
  3. Step 3: Cross multiply
    343,179.75x = 473,588.06 × 209,043.75
  4. Step 4: Simplify right side
    343,179.75x = 99,000,624,017.63
  5. Step 5: Solve for x
    x = 99,000,624,017.63/343,179.75
  6. Step 6: Final answer
    x = 288,480.38

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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.