Home / 285,214.19-393,600.26-156,150.53

Finding the Fourth Proportional to 285,214.19, 393,600.26 and 156,150.53

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Solution

The fourth proportional to 285,214.19, 393,600.26 and 156,150.53 is: 215,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,214.19 : 393,600.26 = 156,150.53 : x
  2. Step 2: Convert to fraction form
    285,214.19/393,600.26 = 156,150.53/x
  3. Step 3: Cross multiply
    285,214.19x = 393,600.26 × 156,150.53
  4. Step 4: Simplify right side
    285,214.19x = 61,460,887,629.51
  5. Step 5: Solve for x
    x = 61,460,887,629.51/285,214.19
  6. Step 6: Final answer
    x = 215,490.29

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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.