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Finding the Fourth Proportional to 343,740.68, 474,355 and 190,769.98

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Solution

The fourth proportional to 343,740.68, 474,355 and 190,769.98 is: 263,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,740.68 : 474,355 = 190,769.98 : x
  2. Step 2: Convert to fraction form
    343,740.68/474,355 = 190,769.98/x
  3. Step 3: Cross multiply
    343,740.68x = 474,355 × 190,769.98
  4. Step 4: Simplify right side
    343,740.68x = 90,492,693,862.90
  5. Step 5: Solve for x
    x = 90,492,693,862.90/343,740.68
  6. Step 6: Final answer
    x = 263,258.61

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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.