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Finding the Fourth Proportional to 347,262.40, 521,239.20 and 169,969.60

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Solution

The fourth proportional to 347,262.40, 521,239.20 and 169,969.60 is: 255,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,262.40 : 521,239.20 = 169,969.60 : x
  2. Step 2: Convert to fraction form
    347,262.40/521,239.20 = 169,969.60/x
  3. Step 3: Cross multiply
    347,262.40x = 521,239.20 × 169,969.60
  4. Step 4: Simplify right side
    347,262.40x = 88,594,818,328.32
  5. Step 5: Solve for x
    x = 88,594,818,328.32/347,262.40
  6. Step 6: Final answer
    x = 255,123.56

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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.