Home / 144,853.40-217,280.10-139,604.60

Finding the Fourth Proportional to 144,853.40, 217,280.10 and 139,604.60

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Solution

The fourth proportional to 144,853.40, 217,280.10 and 139,604.60 is: 209,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,853.40 : 217,280.10 = 139,604.60 : x
  2. Step 2: Convert to fraction form
    144,853.40/217,280.10 = 139,604.60/x
  3. Step 3: Cross multiply
    144,853.40x = 217,280.10 × 139,604.60
  4. Step 4: Simplify right side
    144,853.40x = 30,333,301,448.46
  5. Step 5: Solve for x
    x = 30,333,301,448.46/144,853.40
  6. Step 6: Final answer
    x = 209,406.90

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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.