Home / 278,344.16-384,114.96-151,019.76

Finding the Fourth Proportional to 278,344.16, 384,114.96 and 151,019.76

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Solution

The fourth proportional to 278,344.16, 384,114.96 and 151,019.76 is: 208,407.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,344.16 : 384,114.96 = 151,019.76 : x
  2. Step 2: Convert to fraction form
    278,344.16/384,114.96 = 151,019.76/x
  3. Step 3: Cross multiply
    278,344.16x = 384,114.96 × 151,019.76
  4. Step 4: Simplify right side
    278,344.16x = 58,008,949,071.61
  5. Step 5: Solve for x
    x = 58,008,949,071.61/278,344.16
  6. Step 6: Final answer
    x = 208,407.28

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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.