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Finding the Fourth Proportional to 351,520.32, 485,095.32 and 190,374.87

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Solution

The fourth proportional to 351,520.32, 485,095.32 and 190,374.87 is: 262,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,520.32 : 485,095.32 = 190,374.87 : x
  2. Step 2: Convert to fraction form
    351,520.32/485,095.32 = 190,374.87/x
  3. Step 3: Cross multiply
    351,520.32x = 485,095.32 × 190,374.87
  4. Step 4: Simplify right side
    351,520.32x = 92,349,958,482.61
  5. Step 5: Solve for x
    x = 92,349,958,482.61/351,520.32
  6. Step 6: Final answer
    x = 262,715.85

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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.