Home / 430,083.72-645,052.76-130,492.04

Finding the Fourth Proportional to 430,083.72, 645,052.76 and 130,492.04

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Solution

The fourth proportional to 430,083.72, 645,052.76 and 130,492.04 is: 195,715.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,083.72 : 645,052.76 = 130,492.04 : x
  2. Step 2: Convert to fraction form
    430,083.72/645,052.76 = 130,492.04/x
  3. Step 3: Cross multiply
    430,083.72x = 645,052.76 × 130,492.04
  4. Step 4: Simplify right side
    430,083.72x = 84,174,250,560.03
  5. Step 5: Solve for x
    x = 84,174,250,560.03/430,083.72
  6. Step 6: Final answer
    x = 195,715.97

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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.