Home / 282,315.48-389,590.51-154,990.16

Finding the Fourth Proportional to 282,315.48, 389,590.51 and 154,990.16

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Solution

The fourth proportional to 282,315.48, 389,590.51 and 154,990.16 is: 213,883.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,315.48 : 389,590.51 = 154,990.16 : x
  2. Step 2: Convert to fraction form
    282,315.48/389,590.51 = 154,990.16/x
  3. Step 3: Cross multiply
    282,315.48x = 389,590.51 × 154,990.16
  4. Step 4: Simplify right side
    282,315.48x = 60,382,694,895.52
  5. Step 5: Solve for x
    x = 60,382,694,895.52/282,315.48
  6. Step 6: Final answer
    x = 213,883.76

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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.