Home / 198,779.40-274,358.34-130,802.58

Finding the Fourth Proportional to 198,779.40, 274,358.34 and 130,802.58

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Solution

The fourth proportional to 198,779.40, 274,358.34 and 130,802.58 is: 180,535.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,779.40 : 274,358.34 = 130,802.58 : x
  2. Step 2: Convert to fraction form
    198,779.40/274,358.34 = 130,802.58/x
  3. Step 3: Cross multiply
    198,779.40x = 274,358.34 × 130,802.58
  4. Step 4: Simplify right side
    198,779.40x = 35,886,778,716.52
  5. Step 5: Solve for x
    x = 35,886,778,716.52/198,779.40
  6. Step 6: Final answer
    x = 180,535.70

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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.