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Finding the Fourth Proportional to 239,602.69, 359,365.91 and 79,665.32

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Solution

The fourth proportional to 239,602.69, 359,365.91 and 79,665.32 is: 119,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,602.69 : 359,365.91 = 79,665.32 : x
  2. Step 2: Convert to fraction form
    239,602.69/359,365.91 = 79,665.32/x
  3. Step 3: Cross multiply
    239,602.69x = 359,365.91 × 79,665.32
  4. Step 4: Simplify right side
    239,602.69x = 28,628,999,818.91
  5. Step 5: Solve for x
    x = 28,628,999,818.91/239,602.69
  6. Step 6: Final answer
    x = 119,485.30

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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.