Home / 378,966.26-522,973.53-209,200.50

Finding the Fourth Proportional to 378,966.26, 522,973.53 and 209,200.50

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Solution

The fourth proportional to 378,966.26, 522,973.53 and 209,200.50 is: 288,696.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,966.26 : 522,973.53 = 209,200.50 : x
  2. Step 2: Convert to fraction form
    378,966.26/522,973.53 = 209,200.50/x
  3. Step 3: Cross multiply
    378,966.26x = 522,973.53 × 209,200.50
  4. Step 4: Simplify right side
    378,966.26x = 109,406,323,962.77
  5. Step 5: Solve for x
    x = 109,406,323,962.77/378,966.26
  6. Step 6: Final answer
    x = 288,696.74

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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.