Home / 437,040.80-655,480.20-121,432.40

Finding the Fourth Proportional to 437,040.80, 655,480.20 and 121,432.40

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Solution

The fourth proportional to 437,040.80, 655,480.20 and 121,432.40 is: 182,126.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,040.80 : 655,480.20 = 121,432.40 : x
  2. Step 2: Convert to fraction form
    437,040.80/655,480.20 = 121,432.40/x
  3. Step 3: Cross multiply
    437,040.80x = 655,480.20 × 121,432.40
  4. Step 4: Simplify right side
    437,040.80x = 79,596,533,838.48
  5. Step 5: Solve for x
    x = 79,596,533,838.48/437,040.80
  6. Step 6: Final answer
    x = 182,126.09

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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.