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Finding the Fourth Proportional to 309,505.92, 427,117.44 and 175,369.92

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Solution

The fourth proportional to 309,505.92, 427,117.44 and 175,369.92 is: 242,010.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,505.92 : 427,117.44 = 175,369.92 : x
  2. Step 2: Convert to fraction form
    309,505.92/427,117.44 = 175,369.92/x
  3. Step 3: Cross multiply
    309,505.92x = 427,117.44 × 175,369.92
  4. Step 4: Simplify right side
    309,505.92x = 74,903,551,283.40
  5. Step 5: Solve for x
    x = 74,903,551,283.40/309,505.92
  6. Step 6: Final answer
    x = 242,010.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.