Home / 210,326.20-315,489.30-202,161.40

Finding the Fourth Proportional to 210,326.20, 315,489.30 and 202,161.40

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Solution

The fourth proportional to 210,326.20, 315,489.30 and 202,161.40 is: 303,242.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,326.20 : 315,489.30 = 202,161.40 : x
  2. Step 2: Convert to fraction form
    210,326.20/315,489.30 = 202,161.40/x
  3. Step 3: Cross multiply
    210,326.20x = 315,489.30 × 202,161.40
  4. Step 4: Simplify right side
    210,326.20x = 63,779,758,573.02
  5. Step 5: Solve for x
    x = 63,779,758,573.02/210,326.20
  6. Step 6: Final answer
    x = 303,242.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.