Home / 345,899.70-477,269.01-210,005.19

Finding the Fourth Proportional to 345,899.70, 477,269.01 and 210,005.19

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Solution

The fourth proportional to 345,899.70, 477,269.01 and 210,005.19 is: 289,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,899.70 : 477,269.01 = 210,005.19 : x
  2. Step 2: Convert to fraction form
    345,899.70/477,269.01 = 210,005.19/x
  3. Step 3: Cross multiply
    345,899.70x = 477,269.01 × 210,005.19
  4. Step 4: Simplify right side
    345,899.70x = 100,228,969,126.16
  5. Step 5: Solve for x
    x = 100,228,969,126.16/345,899.70
  6. Step 6: Final answer
    x = 289,763.10

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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.