Home / 278,790.77-384,733.98-157,929.48

Finding the Fourth Proportional to 278,790.77, 384,733.98 and 157,929.48

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Solution

The fourth proportional to 278,790.77, 384,733.98 and 157,929.48 is: 217,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,790.77 : 384,733.98 = 157,929.48 : x
  2. Step 2: Convert to fraction form
    278,790.77/384,733.98 = 157,929.48/x
  3. Step 3: Cross multiply
    278,790.77x = 384,733.98 × 157,929.48
  4. Step 4: Simplify right side
    278,790.77x = 60,760,834,686.41
  5. Step 5: Solve for x
    x = 60,760,834,686.41/278,790.77
  6. Step 6: Final answer
    x = 217,944.21

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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.