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Finding the Fourth Proportional to 347,002.40, 520,503.60 and 293,858.30

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Solution

The fourth proportional to 347,002.40, 520,503.60 and 293,858.30 is: 440,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,002.40 : 520,503.60 = 293,858.30 : x
  2. Step 2: Convert to fraction form
    347,002.40/520,503.60 = 293,858.30/x
  3. Step 3: Cross multiply
    347,002.40x = 520,503.60 × 293,858.30
  4. Step 4: Simplify right side
    347,002.40x = 152,954,303,039.88
  5. Step 5: Solve for x
    x = 152,954,303,039.88/347,002.40
  6. Step 6: Final answer
    x = 440,787.45

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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.