Home / 285,120.08-393,495-164,265.92

Finding the Fourth Proportional to 285,120.08, 393,495 and 164,265.92

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Solution

The fourth proportional to 285,120.08, 393,495 and 164,265.92 is: 226,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,120.08 : 393,495 = 164,265.92 : x
  2. Step 2: Convert to fraction form
    285,120.08/393,495 = 164,265.92/x
  3. Step 3: Cross multiply
    285,120.08x = 393,495 × 164,265.92
  4. Step 4: Simplify right side
    285,120.08x = 64,637,818,190.40
  5. Step 5: Solve for x
    x = 64,637,818,190.40/285,120.08
  6. Step 6: Final answer
    x = 226,703.84

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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.