Home / 389,649.09-583,956.95-200,101.80

Finding the Fourth Proportional to 389,649.09, 583,956.95 and 200,101.80

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Solution

The fourth proportional to 389,649.09, 583,956.95 and 200,101.80 is: 299,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,649.09 : 583,956.95 = 200,101.80 : x
  2. Step 2: Convert to fraction form
    389,649.09/583,956.95 = 200,101.80/x
  3. Step 3: Cross multiply
    389,649.09x = 583,956.95 × 200,101.80
  4. Step 4: Simplify right side
    389,649.09x = 116,850,837,317.77
  5. Step 5: Solve for x
    x = 116,850,837,317.77/389,649.09
  6. Step 6: Final answer
    x = 299,887.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.