Home / 352,945.15-529,521.64-128,302.04

Finding the Fourth Proportional to 352,945.15, 529,521.64 and 128,302.04

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Solution

The fourth proportional to 352,945.15, 529,521.64 and 128,302.04 is: 192,490.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,945.15 : 529,521.64 = 128,302.04 : x
  2. Step 2: Convert to fraction form
    352,945.15/529,521.64 = 128,302.04/x
  3. Step 3: Cross multiply
    352,945.15x = 529,521.64 × 128,302.04
  4. Step 4: Simplify right side
    352,945.15x = 67,938,707,639.19
  5. Step 5: Solve for x
    x = 67,938,707,639.19/352,945.15
  6. Step 6: Final answer
    x = 192,490.84

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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.