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Finding the Fourth Proportional to 350,989.29, 526,549.55 and 140,643.63

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Solution

The fourth proportional to 350,989.29, 526,549.55 and 140,643.63 is: 210,991.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,989.29 : 526,549.55 = 140,643.63 : x
  2. Step 2: Convert to fraction form
    350,989.29/526,549.55 = 140,643.63/x
  3. Step 3: Cross multiply
    350,989.29x = 526,549.55 × 140,643.63
  4. Step 4: Simplify right side
    350,989.29x = 74,055,840,086.87
  5. Step 5: Solve for x
    x = 74,055,840,086.87/350,989.29
  6. Step 6: Final answer
    x = 210,991.74

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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.