Home / 388,829.96-536,570.10-219,098.12

Finding the Fourth Proportional to 388,829.96, 536,570.10 and 219,098.12

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Solution

The fourth proportional to 388,829.96, 536,570.10 and 219,098.12 is: 302,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,829.96 : 536,570.10 = 219,098.12 : x
  2. Step 2: Convert to fraction form
    388,829.96/536,570.10 = 219,098.12/x
  3. Step 3: Cross multiply
    388,829.96x = 536,570.10 × 219,098.12
  4. Step 4: Simplify right side
    388,829.96x = 117,561,500,158.21
  5. Step 5: Solve for x
    x = 117,561,500,158.21/388,829.96
  6. Step 6: Final answer
    x = 302,346.82

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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.