Home / 219,630.16-303,143.88-144,280.72

Finding the Fourth Proportional to 219,630.16, 303,143.88 and 144,280.72

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Solution

The fourth proportional to 219,630.16, 303,143.88 and 144,280.72 is: 199,143.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,630.16 : 303,143.88 = 144,280.72 : x
  2. Step 2: Convert to fraction form
    219,630.16/303,143.88 = 144,280.72/x
  3. Step 3: Cross multiply
    219,630.16x = 303,143.88 × 144,280.72
  4. Step 4: Simplify right side
    219,630.16x = 43,737,817,269.99
  5. Step 5: Solve for x
    x = 43,737,817,269.99/219,630.16
  6. Step 6: Final answer
    x = 199,143.04

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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.