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Finding the Fourth Proportional to 340,018.84, 510,028.60 and 126,783.50

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Solution

The fourth proportional to 340,018.84, 510,028.60 and 126,783.50 is: 190,175.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,018.84 : 510,028.60 = 126,783.50 : x
  2. Step 2: Convert to fraction form
    340,018.84/510,028.60 = 126,783.50/x
  3. Step 3: Cross multiply
    340,018.84x = 510,028.60 × 126,783.50
  4. Step 4: Simplify right side
    340,018.84x = 64,663,208,457.96
  5. Step 5: Solve for x
    x = 64,663,208,457.96/340,018.84
  6. Step 6: Final answer
    x = 190,175.37

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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.