Home / 282,325.60-389,609.99-155,009.40

Finding the Fourth Proportional to 282,325.60, 389,609.99 and 155,009.40

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Solution

The fourth proportional to 282,325.60, 389,609.99 and 155,009.40 is: 213,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,325.60 : 389,609.99 = 155,009.40 : x
  2. Step 2: Convert to fraction form
    282,325.60/389,609.99 = 155,009.40/x
  3. Step 3: Cross multiply
    282,325.60x = 389,609.99 × 155,009.40
  4. Step 4: Simplify right side
    282,325.60x = 60,393,210,783.91
  5. Step 5: Solve for x
    x = 60,393,210,783.91/282,325.60
  6. Step 6: Final answer
    x = 213,913.34

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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.