Home / 219,304.04-302,689.55-142,687.96

Finding the Fourth Proportional to 219,304.04, 302,689.55 and 142,687.96

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Solution

The fourth proportional to 219,304.04, 302,689.55 and 142,687.96 is: 196,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,304.04 : 302,689.55 = 142,687.96 : x
  2. Step 2: Convert to fraction form
    219,304.04/302,689.55 = 142,687.96/x
  3. Step 3: Cross multiply
    219,304.04x = 302,689.55 × 142,687.96
  4. Step 4: Simplify right side
    219,304.04x = 43,190,154,002.81
  5. Step 5: Solve for x
    x = 43,190,154,002.81/219,304.04
  6. Step 6: Final answer
    x = 196,941.90

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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.