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Finding the Fourth Proportional to 345,383.94, 476,498.76 and 209,368.26

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Solution

The fourth proportional to 345,383.94, 476,498.76 and 209,368.26 is: 288,848.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,383.94 : 476,498.76 = 209,368.26 : x
  2. Step 2: Convert to fraction form
    345,383.94/476,498.76 = 209,368.26/x
  3. Step 3: Cross multiply
    345,383.94x = 476,498.76 × 209,368.26
  4. Step 4: Simplify right side
    345,383.94x = 99,763,716,273.36
  5. Step 5: Solve for x
    x = 99,763,716,273.36/345,383.94
  6. Step 6: Final answer
    x = 288,848.74

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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.