Home / 285,204.48-393,582.30-156,151.32

Finding the Fourth Proportional to 285,204.48, 393,582.30 and 156,151.32

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Solution

The fourth proportional to 285,204.48, 393,582.30 and 156,151.32 is: 215,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,204.48 : 393,582.30 = 156,151.32 : x
  2. Step 2: Convert to fraction form
    285,204.48/393,582.30 = 156,151.32/x
  3. Step 3: Cross multiply
    285,204.48x = 393,582.30 × 156,151.32
  4. Step 4: Simplify right side
    285,204.48x = 61,458,395,673.64
  5. Step 5: Solve for x
    x = 61,458,395,673.64/285,204.48
  6. Step 6: Final answer
    x = 215,488.89

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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.