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Finding the Fourth Proportional to 347,351.40, 521,027.10 and 288,302.40

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Solution

The fourth proportional to 347,351.40, 521,027.10 and 288,302.40 is: 432,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,351.40 : 521,027.10 = 288,302.40 : x
  2. Step 2: Convert to fraction form
    347,351.40/521,027.10 = 288,302.40/x
  3. Step 3: Cross multiply
    347,351.40x = 521,027.10 × 288,302.40
  4. Step 4: Simplify right side
    347,351.40x = 150,213,363,395.04
  5. Step 5: Solve for x
    x = 150,213,363,395.04/347,351.40
  6. Step 6: Final answer
    x = 432,453.60

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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.