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Finding the Fourth Proportional to 368,130.12, 551,211 and 210,141.24

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Solution

The fourth proportional to 368,130.12, 551,211 and 210,141.24 is: 314,650.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,130.12 : 551,211 = 210,141.24 : x
  2. Step 2: Convert to fraction form
    368,130.12/551,211 = 210,141.24/x
  3. Step 3: Cross multiply
    368,130.12x = 551,211 × 210,141.24
  4. Step 4: Simplify right side
    368,130.12x = 115,832,163,041.64
  5. Step 5: Solve for x
    x = 115,832,163,041.64/368,130.12
  6. Step 6: Final answer
    x = 314,650.06

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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.