Home / 430,006.37-645,015.32-149,528.93

Finding the Fourth Proportional to 430,006.37, 645,015.32 and 149,528.93

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Solution

The fourth proportional to 430,006.37, 645,015.32 and 149,528.93 is: 224,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,006.37 : 645,015.32 = 149,528.93 : x
  2. Step 2: Convert to fraction form
    430,006.37/645,015.32 = 149,528.93/x
  3. Step 3: Cross multiply
    430,006.37x = 645,015.32 × 149,528.93
  4. Step 4: Simplify right side
    430,006.37x = 96,448,449,885.56
  5. Step 5: Solve for x
    x = 96,448,449,885.56/430,006.37
  6. Step 6: Final answer
    x = 224,295.40

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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.