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Finding the Fourth Proportional to 310,890.84, 429,062.58 and 190,102.92

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Solution

The fourth proportional to 310,890.84, 429,062.58 and 190,102.92 is: 262,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,890.84 : 429,062.58 = 190,102.92 : x
  2. Step 2: Convert to fraction form
    310,890.84/429,062.58 = 190,102.92/x
  3. Step 3: Cross multiply
    310,890.84x = 429,062.58 × 190,102.92
  4. Step 4: Simplify right side
    310,890.84x = 81,566,049,320.73
  5. Step 5: Solve for x
    x = 81,566,049,320.73/310,890.84
  6. Step 6: Final answer
    x = 262,362.34

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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.