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Finding the Fourth Proportional to 369,465.80, 554,256.78 and 120,089.48

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Solution

The fourth proportional to 369,465.80, 554,256.78 and 120,089.48 is: 180,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,465.80 : 554,256.78 = 120,089.48 : x
  2. Step 2: Convert to fraction form
    369,465.80/554,256.78 = 120,089.48/x
  3. Step 3: Cross multiply
    369,465.80x = 554,256.78 × 120,089.48
  4. Step 4: Simplify right side
    369,465.80x = 66,560,408,496.67
  5. Step 5: Solve for x
    x = 66,560,408,496.67/369,465.80
  6. Step 6: Final answer
    x = 180,153.10

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1.5x scale

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.