Home / 352,920.72-529,248.56-128,225.68

Finding the Fourth Proportional to 352,920.72, 529,248.56 and 128,225.68

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Solution

The fourth proportional to 352,920.72, 529,248.56 and 128,225.68 is: 192,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,920.72 : 529,248.56 = 128,225.68 : x
  2. Step 2: Convert to fraction form
    352,920.72/529,248.56 = 128,225.68/x
  3. Step 3: Cross multiply
    352,920.72x = 529,248.56 × 128,225.68
  4. Step 4: Simplify right side
    352,920.72x = 67,863,256,495.02
  5. Step 5: Solve for x
    x = 67,863,256,495.02/352,920.72
  6. Step 6: Final answer
    x = 192,290.37

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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.