Home / 278,343.76-384,110.94-151,018.42

Finding the Fourth Proportional to 278,343.76, 384,110.94 and 151,018.42

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Solution

The fourth proportional to 278,343.76, 384,110.94 and 151,018.42 is: 208,403.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,343.76 : 384,110.94 = 151,018.42 : x
  2. Step 2: Convert to fraction form
    278,343.76/384,110.94 = 151,018.42/x
  3. Step 3: Cross multiply
    278,343.76x = 384,110.94 × 151,018.42
  4. Step 4: Simplify right side
    278,343.76x = 58,007,827,263.51
  5. Step 5: Solve for x
    x = 58,007,827,263.51/278,343.76
  6. Step 6: Final answer
    x = 208,403.55

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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.