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Finding the Fourth Proportional to 343,368.76, 473,840.40 and 190,407.56

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Solution

The fourth proportional to 343,368.76, 473,840.40 and 190,407.56 is: 262,757.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,368.76 : 473,840.40 = 190,407.56 : x
  2. Step 2: Convert to fraction form
    343,368.76/473,840.40 = 190,407.56/x
  3. Step 3: Cross multiply
    343,368.76x = 473,840.40 × 190,407.56
  4. Step 4: Simplify right side
    343,368.76x = 90,222,794,393.42
  5. Step 5: Solve for x
    x = 90,222,794,393.42/343,368.76
  6. Step 6: Final answer
    x = 262,757.73

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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.