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Finding the Fourth Proportional to 356,989.60, 534,447.60 and 346,621.60

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Solution

The fourth proportional to 356,989.60, 534,447.60 and 346,621.60 is: 518,925.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,989.60 : 534,447.60 = 346,621.60 : x
  2. Step 2: Convert to fraction form
    356,989.60/534,447.60 = 346,621.60/x
  3. Step 3: Cross multiply
    356,989.60x = 534,447.60 × 346,621.60
  4. Step 4: Simplify right side
    356,989.60x = 185,251,082,228.16
  5. Step 5: Solve for x
    x = 185,251,082,228.16/356,989.60
  6. Step 6: Final answer
    x = 518,925.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.