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Finding the Fourth Proportional to 242,877.40, 364,316.10 and 76,665.40

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Solution

The fourth proportional to 242,877.40, 364,316.10 and 76,665.40 is: 114,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,877.40 : 364,316.10 = 76,665.40 : x
  2. Step 2: Convert to fraction form
    242,877.40/364,316.10 = 76,665.40/x
  3. Step 3: Cross multiply
    242,877.40x = 364,316.10 × 76,665.40
  4. Step 4: Simplify right side
    242,877.40x = 27,930,439,532.94
  5. Step 5: Solve for x
    x = 27,930,439,532.94/242,877.40
  6. Step 6: Final answer
    x = 114,998.10

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1.5x scale

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.