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Finding the Fourth Proportional to 642,328.26, 963,188.37 and 237,387.66

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Solution

The fourth proportional to 642,328.26, 963,188.37 and 237,387.66 is: 355,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,328.26 : 963,188.37 = 237,387.66 : x
  2. Step 2: Convert to fraction form
    642,328.26/963,188.37 = 237,387.66/x
  3. Step 3: Cross multiply
    642,328.26x = 963,188.37 × 237,387.66
  4. Step 4: Simplify right side
    642,328.26x = 228,649,033,293.51
  5. Step 5: Solve for x
    x = 228,649,033,293.51/642,328.26
  6. Step 6: Final answer
    x = 355,969.13

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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.