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Finding the Fourth Proportional to 250,813.08, 346,284.27 and 155,421

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Solution

The fourth proportional to 250,813.08, 346,284.27 and 155,421 is: 214,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,813.08 : 346,284.27 = 155,421 : x
  2. Step 2: Convert to fraction form
    250,813.08/346,284.27 = 155,421/x
  3. Step 3: Cross multiply
    250,813.08x = 346,284.27 × 155,421
  4. Step 4: Simplify right side
    250,813.08x = 53,819,847,527.67
  5. Step 5: Solve for x
    x = 53,819,847,527.67/250,813.08
  6. Step 6: Final answer
    x = 214,581.50

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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.