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Finding the Fourth Proportional to 389,477.28, 584,248.24 and 108,994.08

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Solution

The fourth proportional to 389,477.28, 584,248.24 and 108,994.08 is: 163,500.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,477.28 : 584,248.24 = 108,994.08 : x
  2. Step 2: Convert to fraction form
    389,477.28/584,248.24 = 108,994.08/x
  3. Step 3: Cross multiply
    389,477.28x = 584,248.24 × 108,994.08
  4. Step 4: Simplify right side
    389,477.28x = 63,679,599,410.42
  5. Step 5: Solve for x
    x = 63,679,599,410.42/389,477.28
  6. Step 6: Final answer
    x = 163,500.16

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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.