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Finding the Fourth Proportional to 370,835.82, 511,492.32 and 358,490.61

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Solution

The fourth proportional to 370,835.82, 511,492.32 and 358,490.61 is: 494,464.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,835.82 : 511,492.32 = 358,490.61 : x
  2. Step 2: Convert to fraction form
    370,835.82/511,492.32 = 358,490.61/x
  3. Step 3: Cross multiply
    370,835.82x = 511,492.32 × 358,490.61
  4. Step 4: Simplify right side
    370,835.82x = 183,365,193,807.12
  5. Step 5: Solve for x
    x = 183,365,193,807.12/370,835.82
  6. Step 6: Final answer
    x = 494,464.62

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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.