Home / 278,897.04-384,746.45-202,247.98

Finding the Fourth Proportional to 278,897.04, 384,746.45 and 202,247.98

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Solution

The fourth proportional to 278,897.04, 384,746.45 and 202,247.98 is: 279,006.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,897.04 : 384,746.45 = 202,247.98 : x
  2. Step 2: Convert to fraction form
    278,897.04/384,746.45 = 202,247.98/x
  3. Step 3: Cross multiply
    278,897.04x = 384,746.45 × 202,247.98
  4. Step 4: Simplify right side
    278,897.04x = 77,814,192,324.67
  5. Step 5: Solve for x
    x = 77,814,192,324.67/278,897.04
  6. Step 6: Final answer
    x = 279,006.88

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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.