Home / 219,931.98-303,538.77-139,367.04

Finding the Fourth Proportional to 219,931.98, 303,538.77 and 139,367.04

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Solution

The fourth proportional to 219,931.98, 303,538.77 and 139,367.04 is: 192,347.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,931.98 : 303,538.77 = 139,367.04 : x
  2. Step 2: Convert to fraction form
    219,931.98/303,538.77 = 139,367.04/x
  3. Step 3: Cross multiply
    219,931.98x = 303,538.77 × 139,367.04
  4. Step 4: Simplify right side
    219,931.98x = 42,303,299,203.31
  5. Step 5: Solve for x
    x = 42,303,299,203.31/219,931.98
  6. Step 6: Final answer
    x = 192,347.19

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1.5x scale

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.