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Finding the Fourth Proportional to 310,889.34, 429,060.51 and 190,101.42

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Solution

The fourth proportional to 310,889.34, 429,060.51 and 190,101.42 is: 262,360.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,889.34 : 429,060.51 = 190,101.42 : x
  2. Step 2: Convert to fraction form
    310,889.34/429,060.51 = 190,101.42/x
  3. Step 3: Cross multiply
    310,889.34x = 429,060.51 × 190,101.42
  4. Step 4: Simplify right side
    310,889.34x = 81,565,012,216.92
  5. Step 5: Solve for x
    x = 81,565,012,216.92/310,889.34
  6. Step 6: Final answer
    x = 262,360.27

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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.