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Finding the Fourth Proportional to 343,494.68, 473,988.78 and 190,530.20

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Solution

The fourth proportional to 343,494.68, 473,988.78 and 190,530.20 is: 262,912.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,494.68 : 473,988.78 = 190,530.20 : x
  2. Step 2: Convert to fraction form
    343,494.68/473,988.78 = 190,530.20/x
  3. Step 3: Cross multiply
    343,494.68x = 473,988.78 × 190,530.20
  4. Step 4: Simplify right side
    343,494.68x = 90,309,177,051.16
  5. Step 5: Solve for x
    x = 90,309,177,051.16/343,494.68
  6. Step 6: Final answer
    x = 262,912.88

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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.