Home / 402,523.81-555,483.03-221,234.24

Finding the Fourth Proportional to 402,523.81, 555,483.03 and 221,234.24

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Solution

The fourth proportional to 402,523.81, 555,483.03 and 221,234.24 is: 305,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,523.81 : 555,483.03 = 221,234.24 : x
  2. Step 2: Convert to fraction form
    402,523.81/555,483.03 = 221,234.24/x
  3. Step 3: Cross multiply
    402,523.81x = 555,483.03 × 221,234.24
  4. Step 4: Simplify right side
    402,523.81x = 122,891,865,974.95
  5. Step 5: Solve for x
    x = 122,891,865,974.95/402,523.81
  6. Step 6: Final answer
    x = 305,303.35

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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.