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Finding the Fourth Proportional to 347,075.55, 520,511.20 and 157,426.20

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Solution

The fourth proportional to 347,075.55, 520,511.20 and 157,426.20 is: 236,092.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,075.55 : 520,511.20 = 157,426.20 : x
  2. Step 2: Convert to fraction form
    347,075.55/520,511.20 = 157,426.20/x
  3. Step 3: Cross multiply
    347,075.55x = 520,511.20 × 157,426.20
  4. Step 4: Simplify right side
    347,075.55x = 81,942,099,879.87
  5. Step 5: Solve for x
    x = 81,942,099,879.87/347,075.55
  6. Step 6: Final answer
    x = 236,092.98

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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.