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Finding the Fourth Proportional to 648,652.59, 972,652.23 and 216,216.95

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Solution

The fourth proportional to 648,652.59, 972,652.23 and 216,216.95 is: 324,216.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,652.59 : 972,652.23 = 216,216.95 : x
  2. Step 2: Convert to fraction form
    648,652.59/972,652.23 = 216,216.95/x
  3. Step 3: Cross multiply
    648,652.59x = 972,652.23 × 216,216.95
  4. Step 4: Simplify right side
    648,652.59x = 210,303,893,718.04
  5. Step 5: Solve for x
    x = 210,303,893,718.04/648,652.59
  6. Step 6: Final answer
    x = 324,216.53

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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.