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Finding the Fourth Proportional to 455,622.80, 684,017.40 and 242,560.40

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Solution

The fourth proportional to 455,622.80, 684,017.40 and 242,560.40 is: 364,151.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,622.80 : 684,017.40 = 242,560.40 : x
  2. Step 2: Convert to fraction form
    455,622.80/684,017.40 = 242,560.40/x
  3. Step 3: Cross multiply
    455,622.80x = 684,017.40 × 242,560.40
  4. Step 4: Simplify right side
    455,622.80x = 165,915,534,150.96
  5. Step 5: Solve for x
    x = 165,915,534,150.96/455,622.80
  6. Step 6: Final answer
    x = 364,151.08

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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.