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Finding the Fourth Proportional to 230,010.40, 344,913.20 and 105,389.60

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Solution

The fourth proportional to 230,010.40, 344,913.20 and 105,389.60 is: 158,037.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,010.40 : 344,913.20 = 105,389.60 : x
  2. Step 2: Convert to fraction form
    230,010.40/344,913.20 = 105,389.60/x
  3. Step 3: Cross multiply
    230,010.40x = 344,913.20 × 105,389.60
  4. Step 4: Simplify right side
    230,010.40x = 36,350,264,182.72
  5. Step 5: Solve for x
    x = 36,350,264,182.72/230,010.40
  6. Step 6: Final answer
    x = 158,037.48

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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.