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Finding the Fourth Proportional to 158,615.36, 238,218.88 and 139,646.72

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Solution

The fourth proportional to 158,615.36, 238,218.88 and 139,646.72 is: 209,730.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,615.36 : 238,218.88 = 139,646.72 : x
  2. Step 2: Convert to fraction form
    158,615.36/238,218.88 = 139,646.72/x
  3. Step 3: Cross multiply
    158,615.36x = 238,218.88 × 139,646.72
  4. Step 4: Simplify right side
    158,615.36x = 33,266,485,234.07
  5. Step 5: Solve for x
    x = 33,266,485,234.07/158,615.36
  6. Step 6: Final answer
    x = 209,730.54

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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.