Home / 397,271.75-548,235.02-218,423.75

Finding the Fourth Proportional to 397,271.75, 548,235.02 and 218,423.75

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Solution

The fourth proportional to 397,271.75, 548,235.02 and 218,423.75 is: 301,424.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,271.75 : 548,235.02 = 218,423.75 : x
  2. Step 2: Convert to fraction form
    397,271.75/548,235.02 = 218,423.75/x
  3. Step 3: Cross multiply
    397,271.75x = 548,235.02 × 218,423.75
  4. Step 4: Simplify right side
    397,271.75x = 119,747,547,857.61
  5. Step 5: Solve for x
    x = 119,747,547,857.61/397,271.75
  6. Step 6: Final answer
    x = 301,424.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.