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Finding the Fourth Proportional to 350,721.34, 525,320.73 and 215,374.67

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Solution

The fourth proportional to 350,721.34, 525,320.73 and 215,374.67 is: 322,594.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,721.34 : 525,320.73 = 215,374.67 : x
  2. Step 2: Convert to fraction form
    350,721.34/525,320.73 = 215,374.67/x
  3. Step 3: Cross multiply
    350,721.34x = 525,320.73 × 215,374.67
  4. Step 4: Simplify right side
    350,721.34x = 113,140,776,241.31
  5. Step 5: Solve for x
    x = 113,140,776,241.31/350,721.34
  6. Step 6: Final answer
    x = 322,594.51

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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.