Home / 364,085.10-545,868.45-139,358.70

Finding the Fourth Proportional to 364,085.10, 545,868.45 and 139,358.70

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Solution

The fourth proportional to 364,085.10, 545,868.45 and 139,358.70 is: 208,938.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,085.10 : 545,868.45 = 139,358.70 : x
  2. Step 2: Convert to fraction form
    364,085.10/545,868.45 = 139,358.70/x
  3. Step 3: Cross multiply
    364,085.10x = 545,868.45 × 139,358.70
  4. Step 4: Simplify right side
    364,085.10x = 76,071,517,563.02
  5. Step 5: Solve for x
    x = 76,071,517,563.02/364,085.10
  6. Step 6: Final answer
    x = 208,938.84

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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.