Home / 402,573.46-555,545.14-221,281.50

Finding the Fourth Proportional to 402,573.46, 555,545.14 and 221,281.50

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Solution

The fourth proportional to 402,573.46, 555,545.14 and 221,281.50 is: 305,365.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,573.46 : 555,545.14 = 221,281.50 : x
  2. Step 2: Convert to fraction form
    402,573.46/555,545.14 = 221,281.50/x
  3. Step 3: Cross multiply
    402,573.46x = 555,545.14 × 221,281.50
  4. Step 4: Simplify right side
    402,573.46x = 122,931,859,361.94
  5. Step 5: Solve for x
    x = 122,931,859,361.94/402,573.46
  6. Step 6: Final answer
    x = 305,365.04

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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.