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Finding the Fourth Proportional to 252,607.75, 348,598.73 and 139,430.53

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Solution

The fourth proportional to 252,607.75, 348,598.73 and 139,430.53 is: 192,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,607.75 : 348,598.73 = 139,430.53 : x
  2. Step 2: Convert to fraction form
    252,607.75/348,598.73 = 139,430.53/x
  3. Step 3: Cross multiply
    252,607.75x = 348,598.73 × 139,430.53
  4. Step 4: Simplify right side
    252,607.75x = 48,605,304,984.07
  5. Step 5: Solve for x
    x = 48,605,304,984.07/252,607.75
  6. Step 6: Final answer
    x = 192,414.15

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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.