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Finding the Fourth Proportional to 343,689, 474,289.72 and 190,750.24

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Solution

The fourth proportional to 343,689, 474,289.72 and 190,750.24 is: 263,234.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,689 : 474,289.72 = 190,750.24 : x
  2. Step 2: Convert to fraction form
    343,689/474,289.72 = 190,750.24/x
  3. Step 3: Cross multiply
    343,689x = 474,289.72 × 190,750.24
  4. Step 4: Simplify right side
    343,689x = 90,470,877,919.53
  5. Step 5: Solve for x
    x = 90,470,877,919.53/343,689
  6. Step 6: Final answer
    x = 263,234.72

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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.