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Finding the Fourth Proportional to 214,332.72, 321,495.84 and 89,673.72

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Solution

The fourth proportional to 214,332.72, 321,495.84 and 89,673.72 is: 134,509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,332.72 : 321,495.84 = 89,673.72 : x
  2. Step 2: Convert to fraction form
    214,332.72/321,495.84 = 89,673.72/x
  3. Step 3: Cross multiply
    214,332.72x = 321,495.84 × 89,673.72
  4. Step 4: Simplify right side
    214,332.72x = 28,829,727,937.32
  5. Step 5: Solve for x
    x = 28,829,727,937.32/214,332.72
  6. Step 6: Final answer
    x = 134,509.22

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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.