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Finding the Fourth Proportional to 278,693.82, 384,756.80 and 183,477.29

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Solution

The fourth proportional to 278,693.82, 384,756.80 and 183,477.29 is: 253,303.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,693.82 : 384,756.80 = 183,477.29 : x
  2. Step 2: Convert to fraction form
    278,693.82/384,756.80 = 183,477.29/x
  3. Step 3: Cross multiply
    278,693.82x = 384,756.80 × 183,477.29
  4. Step 4: Simplify right side
    278,693.82x = 70,594,132,131.90
  5. Step 5: Solve for x
    x = 70,594,132,131.90/278,693.82
  6. Step 6: Final answer
    x = 253,303.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.