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Finding the Fourth Proportional to 312,585.77, 468,878.65 and 75,926.86

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Solution

The fourth proportional to 312,585.77, 468,878.65 and 75,926.86 is: 113,890.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,585.77 : 468,878.65 = 75,926.86 : x
  2. Step 2: Convert to fraction form
    312,585.77/468,878.65 = 75,926.86/x
  3. Step 3: Cross multiply
    312,585.77x = 468,878.65 × 75,926.86
  4. Step 4: Simplify right side
    312,585.77x = 35,600,482,253.53
  5. Step 5: Solve for x
    x = 35,600,482,253.53/312,585.77
  6. Step 6: Final answer
    x = 113,890.28

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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.