Home / 310,432.23-428,400.63-187,923.24

Finding the Fourth Proportional to 310,432.23, 428,400.63 and 187,923.24

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Solution

The fourth proportional to 310,432.23, 428,400.63 and 187,923.24 is: 259,336.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,432.23 : 428,400.63 = 187,923.24 : x
  2. Step 2: Convert to fraction form
    310,432.23/428,400.63 = 187,923.24/x
  3. Step 3: Cross multiply
    310,432.23x = 428,400.63 × 187,923.24
  4. Step 4: Simplify right side
    310,432.23x = 80,506,434,407.64
  5. Step 5: Solve for x
    x = 80,506,434,407.64/310,432.23
  6. Step 6: Final answer
    x = 259,336.59

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1.5x scale

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.