Home / 390,088.09-585,244.22-162,339.38

Finding the Fourth Proportional to 390,088.09, 585,244.22 and 162,339.38

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Solution

The fourth proportional to 390,088.09, 585,244.22 and 162,339.38 is: 243,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,088.09 : 585,244.22 = 162,339.38 : x
  2. Step 2: Convert to fraction form
    390,088.09/585,244.22 = 162,339.38/x
  3. Step 3: Cross multiply
    390,088.09x = 585,244.22 × 162,339.38
  4. Step 4: Simplify right side
    390,088.09x = 95,008,180,085.47
  5. Step 5: Solve for x
    x = 95,008,180,085.47/390,088.09
  6. Step 6: Final answer
    x = 243,555.71

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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.