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Finding the Fourth Proportional to 347,783.45, 479,946.14 and 202,585.50

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Solution

The fourth proportional to 347,783.45, 479,946.14 and 202,585.50 is: 279,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,783.45 : 479,946.14 = 202,585.50 : x
  2. Step 2: Convert to fraction form
    347,783.45/479,946.14 = 202,585.50/x
  3. Step 3: Cross multiply
    347,783.45x = 479,946.14 × 202,585.50
  4. Step 4: Simplify right side
    347,783.45x = 97,230,128,744.97
  5. Step 5: Solve for x
    x = 97,230,128,744.97/347,783.45
  6. Step 6: Final answer
    x = 279,570.89

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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.