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Finding the Fourth Proportional to 228,020.60, 342,030.90 and 144,039.80

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Solution

The fourth proportional to 228,020.60, 342,030.90 and 144,039.80 is: 216,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,020.60 : 342,030.90 = 144,039.80 : x
  2. Step 2: Convert to fraction form
    228,020.60/342,030.90 = 144,039.80/x
  3. Step 3: Cross multiply
    228,020.60x = 342,030.90 × 144,039.80
  4. Step 4: Simplify right side
    228,020.60x = 49,266,062,429.82
  5. Step 5: Solve for x
    x = 49,266,062,429.82/228,020.60
  6. Step 6: Final answer
    x = 216,059.70

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1.5x scale

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.