Home / 257,269.60-355,050.84-155,320.12

Finding the Fourth Proportional to 257,269.60, 355,050.84 and 155,320.12

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Solution

The fourth proportional to 257,269.60, 355,050.84 and 155,320.12 is: 214,353.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,269.60 : 355,050.84 = 155,320.12 : x
  2. Step 2: Convert to fraction form
    257,269.60/355,050.84 = 155,320.12/x
  3. Step 3: Cross multiply
    257,269.60x = 355,050.84 × 155,320.12
  4. Step 4: Simplify right side
    257,269.60x = 55,146,539,074.90
  5. Step 5: Solve for x
    x = 55,146,539,074.90/257,269.60
  6. Step 6: Final answer
    x = 214,353.11

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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.