Home / 388,914.12-536,682.24-219,159.18

Finding the Fourth Proportional to 388,914.12, 536,682.24 and 219,159.18

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Solution

The fourth proportional to 388,914.12, 536,682.24 and 219,159.18 is: 302,428.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,914.12 : 536,682.24 = 219,159.18 : x
  2. Step 2: Convert to fraction form
    388,914.12/536,682.24 = 219,159.18/x
  3. Step 3: Cross multiply
    388,914.12x = 536,682.24 × 219,159.18
  4. Step 4: Simplify right side
    388,914.12x = 117,618,839,638.96
  5. Step 5: Solve for x
    x = 117,618,839,638.96/388,914.12
  6. Step 6: Final answer
    x = 302,428.82

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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.