Home / 352,905.72-529,226.10-128,210.64

Finding the Fourth Proportional to 352,905.72, 529,226.10 and 128,210.64

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Solution

The fourth proportional to 352,905.72, 529,226.10 and 128,210.64 is: 192,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,905.72 : 529,226.10 = 128,210.64 : x
  2. Step 2: Convert to fraction form
    352,905.72/529,226.10 = 128,210.64/x
  3. Step 3: Cross multiply
    352,905.72x = 529,226.10 × 128,210.64
  4. Step 4: Simplify right side
    352,905.72x = 67,852,416,985.70
  5. Step 5: Solve for x
    x = 67,852,416,985.70/352,905.72
  6. Step 6: Final answer
    x = 192,267.83

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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.