Home / 355,854.20-533,975.70-145,513.40

Finding the Fourth Proportional to 355,854.20, 533,975.70 and 145,513.40

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Solution

The fourth proportional to 355,854.20, 533,975.70 and 145,513.40 is: 218,349.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,854.20 : 533,975.70 = 145,513.40 : x
  2. Step 2: Convert to fraction form
    355,854.20/533,975.70 = 145,513.40/x
  3. Step 3: Cross multiply
    355,854.20x = 533,975.70 × 145,513.40
  4. Step 4: Simplify right side
    355,854.20x = 77,700,619,624.38
  5. Step 5: Solve for x
    x = 77,700,619,624.38/355,854.20
  6. Step 6: Final answer
    x = 218,349.59

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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.