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Finding the Fourth Proportional to 640,325.88, 960,506.10 and 167,000.76

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Solution

The fourth proportional to 640,325.88, 960,506.10 and 167,000.76 is: 250,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,325.88 : 960,506.10 = 167,000.76 : x
  2. Step 2: Convert to fraction form
    640,325.88/960,506.10 = 167,000.76/x
  3. Step 3: Cross multiply
    640,325.88x = 960,506.10 × 167,000.76
  4. Step 4: Simplify right side
    640,325.88x = 160,405,248,684.64
  5. Step 5: Solve for x
    x = 160,405,248,684.64/640,325.88
  6. Step 6: Final answer
    x = 250,505.65

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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.