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Finding the Fourth Proportional to 144,841, 217,264.20 and 45,000.40

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Solution

The fourth proportional to 144,841, 217,264.20 and 45,000.40 is: 67,501.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,841 : 217,264.20 = 45,000.40 : x
  2. Step 2: Convert to fraction form
    144,841/217,264.20 = 45,000.40/x
  3. Step 3: Cross multiply
    144,841x = 217,264.20 × 45,000.40
  4. Step 4: Simplify right side
    144,841x = 9,776,975,905.68
  5. Step 5: Solve for x
    x = 9,776,975,905.68/144,841
  6. Step 6: Final answer
    x = 67,501.44

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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.