Home / 352,156.80-528,235.20-212,073.60

Finding the Fourth Proportional to 352,156.80, 528,235.20 and 212,073.60

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Solution

The fourth proportional to 352,156.80, 528,235.20 and 212,073.60 is: 318,110.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,156.80 : 528,235.20 = 212,073.60 : x
  2. Step 2: Convert to fraction form
    352,156.80/528,235.20 = 212,073.60/x
  3. Step 3: Cross multiply
    352,156.80x = 528,235.20 × 212,073.60
  4. Step 4: Simplify right side
    352,156.80x = 112,024,740,510.72
  5. Step 5: Solve for x
    x = 112,024,740,510.72/352,156.80
  6. Step 6: Final answer
    x = 318,110.40

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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.