Home / 364,415.40-546,631.74-139,887.72

Finding the Fourth Proportional to 364,415.40, 546,631.74 and 139,887.72

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Solution

The fourth proportional to 364,415.40, 546,631.74 and 139,887.72 is: 209,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,415.40 : 546,631.74 = 139,887.72 : x
  2. Step 2: Convert to fraction form
    364,415.40/546,631.74 = 139,887.72/x
  3. Step 3: Cross multiply
    364,415.40x = 546,631.74 × 139,887.72
  4. Step 4: Simplify right side
    364,415.40x = 76,467,067,788.23
  5. Step 5: Solve for x
    x = 76,467,067,788.23/364,415.40
  6. Step 6: Final answer
    x = 209,834.90

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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.