Home / 278,359.64-384,135.02-151,034.92

Finding the Fourth Proportional to 278,359.64, 384,135.02 and 151,034.92

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Solution

The fourth proportional to 278,359.64, 384,135.02 and 151,034.92 is: 208,427.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,359.64 : 384,135.02 = 151,034.92 : x
  2. Step 2: Convert to fraction form
    278,359.64/384,135.02 = 151,034.92/x
  3. Step 3: Cross multiply
    278,359.64x = 384,135.02 × 151,034.92
  4. Step 4: Simplify right side
    278,359.64x = 58,017,802,014.90
  5. Step 5: Solve for x
    x = 58,017,802,014.90/278,359.64
  6. Step 6: Final answer
    x = 208,427.49

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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.