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Finding the Fourth Proportional to 153,908.40, 230,862.60 and 134,225.40

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Solution

The fourth proportional to 153,908.40, 230,862.60 and 134,225.40 is: 201,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,908.40 : 230,862.60 = 134,225.40 : x
  2. Step 2: Convert to fraction form
    153,908.40/230,862.60 = 134,225.40/x
  3. Step 3: Cross multiply
    153,908.40x = 230,862.60 × 134,225.40
  4. Step 4: Simplify right side
    153,908.40x = 30,987,624,830.04
  5. Step 5: Solve for x
    x = 30,987,624,830.04/153,908.40
  6. Step 6: Final answer
    x = 201,338.10

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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.