Home / 389,124.16-536,999.52-219,358.28

Finding the Fourth Proportional to 389,124.16, 536,999.52 and 219,358.28

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Solution

The fourth proportional to 389,124.16, 536,999.52 and 219,358.28 is: 302,719.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,124.16 : 536,999.52 = 219,358.28 : x
  2. Step 2: Convert to fraction form
    389,124.16/536,999.52 = 219,358.28/x
  3. Step 3: Cross multiply
    389,124.16x = 536,999.52 × 219,358.28
  4. Step 4: Simplify right side
    389,124.16x = 117,795,291,068.03
  5. Step 5: Solve for x
    x = 117,795,291,068.03/389,124.16
  6. Step 6: Final answer
    x = 302,719.04

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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.