Home / 278,667.68-384,562.50-151,345.40

Finding the Fourth Proportional to 278,667.68, 384,562.50 and 151,345.40

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Solution

The fourth proportional to 278,667.68, 384,562.50 and 151,345.40 is: 208,857.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,667.68 : 384,562.50 = 151,345.40 : x
  2. Step 2: Convert to fraction form
    278,667.68/384,562.50 = 151,345.40/x
  3. Step 3: Cross multiply
    278,667.68x = 384,562.50 × 151,345.40
  4. Step 4: Simplify right side
    278,667.68x = 58,201,765,387.50
  5. Step 5: Solve for x
    x = 58,201,765,387.50/278,667.68
  6. Step 6: Final answer
    x = 208,857.25

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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.