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Finding the Fourth Proportional to 312,037.30, 468,318.53 and 292,354.30

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Solution

The fourth proportional to 312,037.30, 468,318.53 and 292,354.30 is: 438,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,037.30 : 468,318.53 = 292,354.30 : x
  2. Step 2: Convert to fraction form
    312,037.30/468,318.53 = 292,354.30/x
  3. Step 3: Cross multiply
    312,037.30x = 468,318.53 × 292,354.30
  4. Step 4: Simplify right side
    312,037.30x = 136,914,936,015.18
  5. Step 5: Solve for x
    x = 136,914,936,015.18/312,037.30
  6. Step 6: Final answer
    x = 438,777.47

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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.