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Finding the Fourth Proportional to 144,920.88, 217,381.44 and 39,740.64

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Solution

The fourth proportional to 144,920.88, 217,381.44 and 39,740.64 is: 59,610.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,920.88 : 217,381.44 = 39,740.64 : x
  2. Step 2: Convert to fraction form
    144,920.88/217,381.44 = 39,740.64/x
  3. Step 3: Cross multiply
    144,920.88x = 217,381.44 × 39,740.64
  4. Step 4: Simplify right side
    144,920.88x = 8,638,877,549.72
  5. Step 5: Solve for x
    x = 8,638,877,549.72/144,920.88
  6. Step 6: Final answer
    x = 59,610.99

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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.