Home / 430,005.62-645,014.19-149,528.18

Finding the Fourth Proportional to 430,005.62, 645,014.19 and 149,528.18

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Solution

The fourth proportional to 430,005.62, 645,014.19 and 149,528.18 is: 224,294.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,005.62 : 645,014.19 = 149,528.18 : x
  2. Step 2: Convert to fraction form
    430,005.62/645,014.19 = 149,528.18/x
  3. Step 3: Cross multiply
    430,005.62x = 645,014.19 × 149,528.18
  4. Step 4: Simplify right side
    430,005.62x = 96,447,797,904.87
  5. Step 5: Solve for x
    x = 96,447,797,904.87/430,005.62
  6. Step 6: Final answer
    x = 224,294.27

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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.