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Finding the Fourth Proportional to 343,484.09, 474,009.77 and 190,511.65

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Solution

The fourth proportional to 343,484.09, 474,009.77 and 190,511.65 is: 262,907.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,484.09 : 474,009.77 = 190,511.65 : x
  2. Step 2: Convert to fraction form
    343,484.09/474,009.77 = 190,511.65/x
  3. Step 3: Cross multiply
    343,484.09x = 474,009.77 × 190,511.65
  4. Step 4: Simplify right side
    343,484.09x = 90,304,381,801.31
  5. Step 5: Solve for x
    x = 90,304,381,801.31/343,484.09
  6. Step 6: Final answer
    x = 262,907.03

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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.