Home / 401,720.16-602,203.20-135,294.24

Finding the Fourth Proportional to 401,720.16, 602,203.20 and 135,294.24

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Solution

The fourth proportional to 401,720.16, 602,203.20 and 135,294.24 is: 202,814.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,720.16 : 602,203.20 = 135,294.24 : x
  2. Step 2: Convert to fraction form
    401,720.16/602,203.20 = 135,294.24/x
  3. Step 3: Cross multiply
    401,720.16x = 602,203.20 × 135,294.24
  4. Step 4: Simplify right side
    401,720.16x = 81,474,624,269.57
  5. Step 5: Solve for x
    x = 81,474,624,269.57/401,720.16
  6. Step 6: Final answer
    x = 202,814.38

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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.