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Finding the Fourth Proportional to 185,165.68, 255,289.98 and 151,139.20

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Solution

The fourth proportional to 185,165.68, 255,289.98 and 151,139.20 is: 208,377.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,165.68 : 255,289.98 = 151,139.20 : x
  2. Step 2: Convert to fraction form
    185,165.68/255,289.98 = 151,139.20/x
  3. Step 3: Cross multiply
    185,165.68x = 255,289.98 × 151,139.20
  4. Step 4: Simplify right side
    185,165.68x = 38,584,323,345.22
  5. Step 5: Solve for x
    x = 38,584,323,345.22/185,165.68
  6. Step 6: Final answer
    x = 208,377.29

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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.