Home / 282,354.13-389,654.99-155,030.23

Finding the Fourth Proportional to 282,354.13, 389,654.99 and 155,030.23

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Solution

The fourth proportional to 282,354.13, 389,654.99 and 155,030.23 is: 213,945.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,354.13 : 389,654.99 = 155,030.23 : x
  2. Step 2: Convert to fraction form
    282,354.13/389,654.99 = 155,030.23/x
  3. Step 3: Cross multiply
    282,354.13x = 389,654.99 × 155,030.23
  4. Step 4: Simplify right side
    282,354.13x = 60,408,302,720.35
  5. Step 5: Solve for x
    x = 60,408,302,720.35/282,354.13
  6. Step 6: Final answer
    x = 213,945.17

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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.