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Finding the Fourth Proportional to 312,280.61, 468,133.89 and 112,552.12

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Solution

The fourth proportional to 312,280.61, 468,133.89 and 112,552.12 is: 168,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,280.61 : 468,133.89 = 112,552.12 : x
  2. Step 2: Convert to fraction form
    312,280.61/468,133.89 = 112,552.12/x
  3. Step 3: Cross multiply
    312,280.61x = 468,133.89 × 112,552.12
  4. Step 4: Simplify right side
    312,280.61x = 52,689,460,170.94
  5. Step 5: Solve for x
    x = 52,689,460,170.94/312,280.61
  6. Step 6: Final answer
    x = 168,724.72

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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.