Home / 369,681.13-554,463.86-120,361.45

Finding the Fourth Proportional to 369,681.13, 554,463.86 and 120,361.45

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Solution

The fourth proportional to 369,681.13, 554,463.86 and 120,361.45 is: 180,523.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,681.13 : 554,463.86 = 120,361.45 : x
  2. Step 2: Convert to fraction form
    369,681.13/554,463.86 = 120,361.45/x
  3. Step 3: Cross multiply
    369,681.13x = 554,463.86 × 120,361.45
  4. Step 4: Simplify right side
    369,681.13x = 66,736,073,560.39
  5. Step 5: Solve for x
    x = 66,736,073,560.39/369,681.13
  6. Step 6: Final answer
    x = 180,523.34

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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.