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Finding the Fourth Proportional to 300,029.40, 450,108.90 and 89,688.60

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Solution

The fourth proportional to 300,029.40, 450,108.90 and 89,688.60 is: 134,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,029.40 : 450,108.90 = 89,688.60 : x
  2. Step 2: Convert to fraction form
    300,029.40/450,108.90 = 89,688.60/x
  3. Step 3: Cross multiply
    300,029.40x = 450,108.90 × 89,688.60
  4. Step 4: Simplify right side
    300,029.40x = 40,369,637,088.54
  5. Step 5: Solve for x
    x = 40,369,637,088.54/300,029.40
  6. Step 6: Final answer
    x = 134,552.27

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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.