Home / 438,200.18-657,372.91-153,816.94

Finding the Fourth Proportional to 438,200.18, 657,372.91 and 153,816.94

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Solution

The fourth proportional to 438,200.18, 657,372.91 and 153,816.94 is: 230,750.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,200.18 : 657,372.91 = 153,816.94 : x
  2. Step 2: Convert to fraction form
    438,200.18/657,372.91 = 153,816.94/x
  3. Step 3: Cross multiply
    438,200.18x = 657,372.91 × 153,816.94
  4. Step 4: Simplify right side
    438,200.18x = 101,115,089,455.10
  5. Step 5: Solve for x
    x = 101,115,089,455.10/438,200.18
  6. Step 6: Final answer
    x = 230,750.91

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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.