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Finding the Fourth Proportional to 369,437.82, 554,215.05 and 120,061.50

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Solution

The fourth proportional to 369,437.82, 554,215.05 and 120,061.50 is: 180,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,437.82 : 554,215.05 = 120,061.50 : x
  2. Step 2: Convert to fraction form
    369,437.82/554,215.05 = 120,061.50/x
  3. Step 3: Cross multiply
    369,437.82x = 554,215.05 × 120,061.50
  4. Step 4: Simplify right side
    369,437.82x = 66,539,890,225.58
  5. Step 5: Solve for x
    x = 66,539,890,225.58/369,437.82
  6. Step 6: Final answer
    x = 180,111.20

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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.