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Finding the Fourth Proportional to 235,279.48, 352,830.90 and 85,482.76

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Solution

The fourth proportional to 235,279.48, 352,830.90 and 85,482.76 is: 128,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,279.48 : 352,830.90 = 85,482.76 : x
  2. Step 2: Convert to fraction form
    235,279.48/352,830.90 = 85,482.76/x
  3. Step 3: Cross multiply
    235,279.48x = 352,830.90 × 85,482.76
  4. Step 4: Simplify right side
    235,279.48x = 30,160,959,145.28
  5. Step 5: Solve for x
    x = 30,160,959,145.28/235,279.48
  6. Step 6: Final answer
    x = 128,192.05

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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.