Home / 210,155.27-315,447.35-153,828.07

Finding the Fourth Proportional to 210,155.27, 315,447.35 and 153,828.07

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Solution

The fourth proportional to 210,155.27, 315,447.35 and 153,828.07 is: 230,899.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,155.27 : 315,447.35 = 153,828.07 : x
  2. Step 2: Convert to fraction form
    210,155.27/315,447.35 = 153,828.07/x
  3. Step 3: Cross multiply
    210,155.27x = 315,447.35 × 153,828.07
  4. Step 4: Simplify right side
    210,155.27x = 48,524,654,690.74
  5. Step 5: Solve for x
    x = 48,524,654,690.74/210,155.27
  6. Step 6: Final answer
    x = 230,899.06

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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.