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Finding the Fourth Proportional to 347,783.84, 479,934.48 and 188,807.84

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Solution

The fourth proportional to 347,783.84, 479,934.48 and 188,807.84 is: 260,550.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,783.84 : 479,934.48 = 188,807.84 : x
  2. Step 2: Convert to fraction form
    347,783.84/479,934.48 = 188,807.84/x
  3. Step 3: Cross multiply
    347,783.84x = 479,934.48 × 188,807.84
  4. Step 4: Simplify right side
    347,783.84x = 90,615,392,510.32
  5. Step 5: Solve for x
    x = 90,615,392,510.32/347,783.84
  6. Step 6: Final answer
    x = 260,550.90

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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.