Home / 386,128.02-532,856.80-235,225.02

Finding the Fourth Proportional to 386,128.02, 532,856.80 and 235,225.02

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Solution

The fourth proportional to 386,128.02, 532,856.80 and 235,225.02 is: 324,610.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,128.02 : 532,856.80 = 235,225.02 : x
  2. Step 2: Convert to fraction form
    386,128.02/532,856.80 = 235,225.02/x
  3. Step 3: Cross multiply
    386,128.02x = 532,856.80 × 235,225.02
  4. Step 4: Simplify right side
    386,128.02x = 125,341,251,437.14
  5. Step 5: Solve for x
    x = 125,341,251,437.14/386,128.02
  6. Step 6: Final answer
    x = 324,610.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.