Home / 353,288.52-529,617.02-128,490.53

Finding the Fourth Proportional to 353,288.52, 529,617.02 and 128,490.53

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Solution

The fourth proportional to 353,288.52, 529,617.02 and 128,490.53 is: 192,620.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,288.52 : 529,617.02 = 128,490.53 : x
  2. Step 2: Convert to fraction form
    353,288.52/529,617.02 = 128,490.53/x
  3. Step 3: Cross multiply
    353,288.52x = 529,617.02 × 128,490.53
  4. Step 4: Simplify right side
    353,288.52x = 68,050,768,306.28
  5. Step 5: Solve for x
    x = 68,050,768,306.28/353,288.52
  6. Step 6: Final answer
    x = 192,620.94

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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.