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Finding the Fourth Proportional to 388,444.96, 536,053.52 and 218,733.92

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Solution

The fourth proportional to 388,444.96, 536,053.52 and 218,733.92 is: 301,852.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,444.96 : 536,053.52 = 218,733.92 : x
  2. Step 2: Convert to fraction form
    388,444.96/536,053.52 = 218,733.92/x
  3. Step 3: Cross multiply
    388,444.96x = 536,053.52 × 218,733.92
  4. Step 4: Simplify right side
    388,444.96x = 117,253,087,759.40
  5. Step 5: Solve for x
    x = 117,253,087,759.40/388,444.96
  6. Step 6: Final answer
    x = 301,852.51

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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.