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Finding the Fourth Proportional to 349,848.60, 524,772.90 and 97,128.60

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Solution

The fourth proportional to 349,848.60, 524,772.90 and 97,128.60 is: 145,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,848.60 : 524,772.90 = 97,128.60 : x
  2. Step 2: Convert to fraction form
    349,848.60/524,772.90 = 97,128.60/x
  3. Step 3: Cross multiply
    349,848.60x = 524,772.90 × 97,128.60
  4. Step 4: Simplify right side
    349,848.60x = 50,970,457,094.94
  5. Step 5: Solve for x
    x = 50,970,457,094.94/349,848.60
  6. Step 6: Final answer
    x = 145,692.90

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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.