Home / 278,342.92-384,113.25-151,018.51

Finding the Fourth Proportional to 278,342.92, 384,113.25 and 151,018.51

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Solution

The fourth proportional to 278,342.92, 384,113.25 and 151,018.51 is: 208,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,342.92 : 384,113.25 = 151,018.51 : x
  2. Step 2: Convert to fraction form
    278,342.92/384,113.25 = 151,018.51/x
  3. Step 3: Cross multiply
    278,342.92x = 384,113.25 × 151,018.51
  4. Step 4: Simplify right side
    278,342.92x = 58,008,210,686.26
  5. Step 5: Solve for x
    x = 58,008,210,686.26/278,342.92
  6. Step 6: Final answer
    x = 208,405.55

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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.