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Finding the Fourth Proportional to 312,237.60, 468,010.80 and 134,714.40

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Solution

The fourth proportional to 312,237.60, 468,010.80 and 134,714.40 is: 201,922.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,237.60 : 468,010.80 = 134,714.40 : x
  2. Step 2: Convert to fraction form
    312,237.60/468,010.80 = 134,714.40/x
  3. Step 3: Cross multiply
    312,237.60x = 468,010.80 × 134,714.40
  4. Step 4: Simplify right side
    312,237.60x = 63,047,794,115.52
  5. Step 5: Solve for x
    x = 63,047,794,115.52/312,237.60
  6. Step 6: Final answer
    x = 201,922.49

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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.