Home / 242,178.10-363,252.39-90,345.94

Finding the Fourth Proportional to 242,178.10, 363,252.39 and 90,345.94

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Solution

The fourth proportional to 242,178.10, 363,252.39 and 90,345.94 is: 135,513.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,178.10 : 363,252.39 = 90,345.94 : x
  2. Step 2: Convert to fraction form
    242,178.10/363,252.39 = 90,345.94/x
  3. Step 3: Cross multiply
    242,178.10x = 363,252.39 × 90,345.94
  4. Step 4: Simplify right side
    242,178.10x = 32,818,378,631.80
  5. Step 5: Solve for x
    x = 32,818,378,631.80/242,178.10
  6. Step 6: Final answer
    x = 135,513.40

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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.