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Finding the Fourth Proportional to 144,859.79, 217,256.48 and 39,686.96

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Solution

The fourth proportional to 144,859.79, 217,256.48 and 39,686.96 is: 59,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,859.79 : 217,256.48 = 39,686.96 : x
  2. Step 2: Convert to fraction form
    144,859.79/217,256.48 = 39,686.96/x
  3. Step 3: Cross multiply
    144,859.79x = 217,256.48 × 39,686.96
  4. Step 4: Simplify right side
    144,859.79x = 8,622,249,725.03
  5. Step 5: Solve for x
    x = 8,622,249,725.03/144,859.79
  6. Step 6: Final answer
    x = 59,521.35

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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.