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Finding the Fourth Proportional to 144,303.53, 216,455.28 and 39,119.76

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Solution

The fourth proportional to 144,303.53, 216,455.28 and 39,119.76 is: 58,679.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,303.53 : 216,455.28 = 39,119.76 : x
  2. Step 2: Convert to fraction form
    144,303.53/216,455.28 = 39,119.76/x
  3. Step 3: Cross multiply
    144,303.53x = 216,455.28 × 39,119.76
  4. Step 4: Simplify right side
    144,303.53x = 8,467,678,604.33
  5. Step 5: Solve for x
    x = 8,467,678,604.33/144,303.53
  6. Step 6: Final answer
    x = 58,679.64

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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.