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Finding the Fourth Proportional to 239,603.69, 359,367.40 and 79,666.32

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Solution

The fourth proportional to 239,603.69, 359,367.40 and 79,666.32 is: 119,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,603.69 : 359,367.40 = 79,666.32 : x
  2. Step 2: Convert to fraction form
    239,603.69/359,367.40 = 79,666.32/x
  3. Step 3: Cross multiply
    239,603.69x = 359,367.40 × 79,666.32
  4. Step 4: Simplify right side
    239,603.69x = 28,629,478,285.97
  5. Step 5: Solve for x
    x = 28,629,478,285.97/239,603.69
  6. Step 6: Final answer
    x = 119,486.80

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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.