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Finding the Fourth Proportional to 553,670.15, 830,439.61 and 179,693.15

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Solution

The fourth proportional to 553,670.15, 830,439.61 and 179,693.15 is: 269,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,670.15 : 830,439.61 = 179,693.15 : x
  2. Step 2: Convert to fraction form
    553,670.15/830,439.61 = 179,693.15/x
  3. Step 3: Cross multiply
    553,670.15x = 830,439.61 × 179,693.15
  4. Step 4: Simplify right side
    553,670.15x = 149,224,304,804.24
  5. Step 5: Solve for x
    x = 149,224,304,804.24/553,670.15
  6. Step 6: Final answer
    x = 269,518.42

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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.