Home / 366,839.80-549,939.70-142,353.40

Finding the Fourth Proportional to 366,839.80, 549,939.70 and 142,353.40

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Solution

The fourth proportional to 366,839.80, 549,939.70 and 142,353.40 is: 213,405.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,839.80 : 549,939.70 = 142,353.40 : x
  2. Step 2: Convert to fraction form
    366,839.80/549,939.70 = 142,353.40/x
  3. Step 3: Cross multiply
    366,839.80x = 549,939.70 × 142,353.40
  4. Step 4: Simplify right side
    366,839.80x = 78,285,786,089.98
  5. Step 5: Solve for x
    x = 78,285,786,089.98/366,839.80
  6. Step 6: Final answer
    x = 213,405.92

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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.