Home / 369,936.40-554,904.60-120,618.40

Finding the Fourth Proportional to 369,936.40, 554,904.60 and 120,618.40

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Solution

The fourth proportional to 369,936.40, 554,904.60 and 120,618.40 is: 180,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,936.40 : 554,904.60 = 120,618.40 : x
  2. Step 2: Convert to fraction form
    369,936.40/554,904.60 = 120,618.40/x
  3. Step 3: Cross multiply
    369,936.40x = 554,904.60 × 120,618.40
  4. Step 4: Simplify right side
    369,936.40x = 66,931,705,004.64
  5. Step 5: Solve for x
    x = 66,931,705,004.64/369,936.40
  6. Step 6: Final answer
    x = 180,927.60

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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.