Home / 282,215.72-389,456.52-153,151.40

Finding the Fourth Proportional to 282,215.72, 389,456.52 and 153,151.40

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Solution

The fourth proportional to 282,215.72, 389,456.52 and 153,151.40 is: 211,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,215.72 : 389,456.52 = 153,151.40 : x
  2. Step 2: Convert to fraction form
    282,215.72/389,456.52 = 153,151.40/x
  3. Step 3: Cross multiply
    282,215.72x = 389,456.52 × 153,151.40
  4. Step 4: Simplify right side
    282,215.72x = 59,645,811,277.13
  5. Step 5: Solve for x
    x = 59,645,811,277.13/282,215.72
  6. Step 6: Final answer
    x = 211,348.30

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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.