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Finding the Fourth Proportional to 286,755.48, 430,105.41 and 87,077.60

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Solution

The fourth proportional to 286,755.48, 430,105.41 and 87,077.60 is: 130,607.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,755.48 : 430,105.41 = 87,077.60 : x
  2. Step 2: Convert to fraction form
    286,755.48/430,105.41 = 87,077.60/x
  3. Step 3: Cross multiply
    286,755.48x = 430,105.41 × 87,077.60
  4. Step 4: Simplify right side
    286,755.48x = 37,452,544,699.29
  5. Step 5: Solve for x
    x = 37,452,544,699.29/286,755.48
  6. Step 6: Final answer
    x = 130,607.95

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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.