Home / 282,384.24-389,687.45-153,319.88

Finding the Fourth Proportional to 282,384.24, 389,687.45 and 153,319.88

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Solution

The fourth proportional to 282,384.24, 389,687.45 and 153,319.88 is: 211,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,384.24 : 389,687.45 = 153,319.88 : x
  2. Step 2: Convert to fraction form
    282,384.24/389,687.45 = 153,319.88/x
  3. Step 3: Cross multiply
    282,384.24x = 389,687.45 × 153,319.88
  4. Step 4: Simplify right side
    282,384.24x = 59,746,830,356.47
  5. Step 5: Solve for x
    x = 59,746,830,356.47/282,384.24
  6. Step 6: Final answer
    x = 211,579.90

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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.