Home / 386,123.12-532,533.95-271,780.28

Finding the Fourth Proportional to 386,123.12, 532,533.95 and 271,780.28

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Solution

The fourth proportional to 386,123.12, 532,533.95 and 271,780.28 is: 374,834.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,123.12 : 532,533.95 = 271,780.28 : x
  2. Step 2: Convert to fraction form
    386,123.12/532,533.95 = 271,780.28/x
  3. Step 3: Cross multiply
    386,123.12x = 532,533.95 × 271,780.28
  4. Step 4: Simplify right side
    386,123.12x = 144,732,222,018.94
  5. Step 5: Solve for x
    x = 144,732,222,018.94/386,123.12
  6. Step 6: Final answer
    x = 374,834.39

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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.