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Finding the Fourth Proportional to 370,005.39, 555,077.28 and 117,218

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Solution

The fourth proportional to 370,005.39, 555,077.28 and 117,218 is: 175,848.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,005.39 : 555,077.28 = 117,218 : x
  2. Step 2: Convert to fraction form
    370,005.39/555,077.28 = 117,218/x
  3. Step 3: Cross multiply
    370,005.39x = 555,077.28 × 117,218
  4. Step 4: Simplify right side
    370,005.39x = 65,065,048,607.04
  5. Step 5: Solve for x
    x = 65,065,048,607.04/370,005.39
  6. Step 6: Final answer
    x = 175,848.92

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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.