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Finding the Fourth Proportional to 144,489.69, 216,712.67 and 39,316.86

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Solution

The fourth proportional to 144,489.69, 216,712.67 and 39,316.86 is: 58,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,489.69 : 216,712.67 = 39,316.86 : x
  2. Step 2: Convert to fraction form
    144,489.69/216,712.67 = 39,316.86/x
  3. Step 3: Cross multiply
    144,489.69x = 216,712.67 × 39,316.86
  4. Step 4: Simplify right side
    144,489.69x = 8,520,461,510.03
  5. Step 5: Solve for x
    x = 8,520,461,510.03/144,489.69
  6. Step 6: Final answer
    x = 58,969.34

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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.