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Finding the Fourth Proportional to 640,280.67, 960,289.75 and 235,333.32

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Solution

The fourth proportional to 640,280.67, 960,289.75 and 235,333.32 is: 352,951.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,280.67 : 960,289.75 = 235,333.32 : x
  2. Step 2: Convert to fraction form
    640,280.67/960,289.75 = 235,333.32/x
  3. Step 3: Cross multiply
    640,280.67x = 960,289.75 × 235,333.32
  4. Step 4: Simplify right side
    640,280.67x = 225,988,175,029.47
  5. Step 5: Solve for x
    x = 225,988,175,029.47/640,280.67
  6. Step 6: Final answer
    x = 352,951.74

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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.