Home / 386,432.87-533,267.07-223,083.86

Finding the Fourth Proportional to 386,432.87, 533,267.07 and 223,083.86

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Solution

The fourth proportional to 386,432.87, 533,267.07 and 223,083.86 is: 307,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,432.87 : 533,267.07 = 223,083.86 : x
  2. Step 2: Convert to fraction form
    386,432.87/533,267.07 = 223,083.86/x
  3. Step 3: Cross multiply
    386,432.87x = 533,267.07 × 223,083.86
  4. Step 4: Simplify right side
    386,432.87x = 118,963,275,271.07
  5. Step 5: Solve for x
    x = 118,963,275,271.07/386,432.87
  6. Step 6: Final answer
    x = 307,849.79

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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.