Home / 390,736.26-586,151.85-110,253.54

Finding the Fourth Proportional to 390,736.26, 586,151.85 and 110,253.54

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Solution

The fourth proportional to 390,736.26, 586,151.85 and 110,253.54 is: 165,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,736.26 : 586,151.85 = 110,253.54 : x
  2. Step 2: Convert to fraction form
    390,736.26/586,151.85 = 110,253.54/x
  3. Step 3: Cross multiply
    390,736.26x = 586,151.85 × 110,253.54
  4. Step 4: Simplify right side
    390,736.26x = 64,625,316,440.05
  5. Step 5: Solve for x
    x = 64,625,316,440.05/390,736.26
  6. Step 6: Final answer
    x = 165,393.70

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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.