Home / 458,844.40-688,266.60-143,333.20

Finding the Fourth Proportional to 458,844.40, 688,266.60 and 143,333.20

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Solution

The fourth proportional to 458,844.40, 688,266.60 and 143,333.20 is: 214,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,844.40 : 688,266.60 = 143,333.20 : x
  2. Step 2: Convert to fraction form
    458,844.40/688,266.60 = 143,333.20/x
  3. Step 3: Cross multiply
    458,844.40x = 688,266.60 × 143,333.20
  4. Step 4: Simplify right side
    458,844.40x = 98,651,454,231.12
  5. Step 5: Solve for x
    x = 98,651,454,231.12/458,844.40
  6. Step 6: Final answer
    x = 214,999.80

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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.