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Finding the Fourth Proportional to 230,051.48, 317,443.44 and 128,052.50

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Solution

The fourth proportional to 230,051.48, 317,443.44 and 128,052.50 is: 176,697.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,051.48 : 317,443.44 = 128,052.50 : x
  2. Step 2: Convert to fraction form
    230,051.48/317,443.44 = 128,052.50/x
  3. Step 3: Cross multiply
    230,051.48x = 317,443.44 × 128,052.50
  4. Step 4: Simplify right side
    230,051.48x = 40,649,426,100.60
  5. Step 5: Solve for x
    x = 40,649,426,100.60/230,051.48
  6. Step 6: Final answer
    x = 176,697.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.