Home / 352,731.55-528,944.23-128,017.30

Finding the Fourth Proportional to 352,731.55, 528,944.23 and 128,017.30

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Solution

The fourth proportional to 352,731.55, 528,944.23 and 128,017.30 is: 191,970.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,731.55 : 528,944.23 = 128,017.30 : x
  2. Step 2: Convert to fraction form
    352,731.55/528,944.23 = 128,017.30/x
  3. Step 3: Cross multiply
    352,731.55x = 528,944.23 × 128,017.30
  4. Step 4: Simplify right side
    352,731.55x = 67,714,012,175.18
  5. Step 5: Solve for x
    x = 67,714,012,175.18/352,731.55
  6. Step 6: Final answer
    x = 191,970.39

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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.