Home / 369,605.68-554,403.66-89,120.50

Finding the Fourth Proportional to 369,605.68, 554,403.66 and 89,120.50

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Solution

The fourth proportional to 369,605.68, 554,403.66 and 89,120.50 is: 133,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,605.68 : 554,403.66 = 89,120.50 : x
  2. Step 2: Convert to fraction form
    369,605.68/554,403.66 = 89,120.50/x
  3. Step 3: Cross multiply
    369,605.68x = 554,403.66 × 89,120.50
  4. Step 4: Simplify right side
    369,605.68x = 49,408,731,381.03
  5. Step 5: Solve for x
    x = 49,408,731,381.03/369,605.68
  6. Step 6: Final answer
    x = 133,679.58

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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.