Home / 430,901.14-645,136.52-228,037.76

Finding the Fourth Proportional to 430,901.14, 645,136.52 and 228,037.76

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Solution

The fourth proportional to 430,901.14, 645,136.52 and 228,037.76 is: 341,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,901.14 : 645,136.52 = 228,037.76 : x
  2. Step 2: Convert to fraction form
    430,901.14/645,136.52 = 228,037.76/x
  3. Step 3: Cross multiply
    430,901.14x = 645,136.52 × 228,037.76
  4. Step 4: Simplify right side
    430,901.14x = 147,115,486,915.00
  5. Step 5: Solve for x
    x = 147,115,486,915.00/430,901.14
  6. Step 6: Final answer
    x = 341,413.55

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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.