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Finding the Fourth Proportional to 276,671.60, 415,007.40 and 171,695.60

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Solution

The fourth proportional to 276,671.60, 415,007.40 and 171,695.60 is: 257,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,671.60 : 415,007.40 = 171,695.60 : x
  2. Step 2: Convert to fraction form
    276,671.60/415,007.40 = 171,695.60/x
  3. Step 3: Cross multiply
    276,671.60x = 415,007.40 × 171,695.60
  4. Step 4: Simplify right side
    276,671.60x = 71,254,944,547.44
  5. Step 5: Solve for x
    x = 71,254,944,547.44/276,671.60
  6. Step 6: Final answer
    x = 257,543.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.