Home / 378,346.36-521,822.62-242,392.89

Finding the Fourth Proportional to 378,346.36, 521,822.62 and 242,392.89

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Solution

The fourth proportional to 378,346.36, 521,822.62 and 242,392.89 is: 334,312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,346.36 : 521,822.62 = 242,392.89 : x
  2. Step 2: Convert to fraction form
    378,346.36/521,822.62 = 242,392.89/x
  3. Step 3: Cross multiply
    378,346.36x = 521,822.62 × 242,392.89
  4. Step 4: Simplify right side
    378,346.36x = 126,486,092,929.17
  5. Step 5: Solve for x
    x = 126,486,092,929.17/378,346.36
  6. Step 6: Final answer
    x = 334,312.96

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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.