Home / 377,619.16-521,127.20-205,543.39

Finding the Fourth Proportional to 377,619.16, 521,127.20 and 205,543.39

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Solution

The fourth proportional to 377,619.16, 521,127.20 and 205,543.39 is: 283,656.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,619.16 : 521,127.20 = 205,543.39 : x
  2. Step 2: Convert to fraction form
    377,619.16/521,127.20 = 205,543.39/x
  3. Step 3: Cross multiply
    377,619.16x = 521,127.20 × 205,543.39
  4. Step 4: Simplify right side
    377,619.16x = 107,114,247,675.86
  5. Step 5: Solve for x
    x = 107,114,247,675.86/377,619.16
  6. Step 6: Final answer
    x = 283,656.82

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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.