Home / 255,421.48-352,478.46-140,697.76

Finding the Fourth Proportional to 255,421.48, 352,478.46 and 140,697.76

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Solution

The fourth proportional to 255,421.48, 352,478.46 and 140,697.76 is: 194,161.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,421.48 : 352,478.46 = 140,697.76 : x
  2. Step 2: Convert to fraction form
    255,421.48/352,478.46 = 140,697.76/x
  3. Step 3: Cross multiply
    255,421.48x = 352,478.46 × 140,697.76
  4. Step 4: Simplify right side
    255,421.48x = 49,592,929,770.25
  5. Step 5: Solve for x
    x = 49,592,929,770.25/255,421.48
  6. Step 6: Final answer
    x = 194,161.16

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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.