Home / 281,739.48-388,799.72-152,681.54

Finding the Fourth Proportional to 281,739.48, 388,799.72 and 152,681.54

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Solution

The fourth proportional to 281,739.48, 388,799.72 and 152,681.54 is: 210,700.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,739.48 : 388,799.72 = 152,681.54 : x
  2. Step 2: Convert to fraction form
    281,739.48/388,799.72 = 152,681.54/x
  3. Step 3: Cross multiply
    281,739.48x = 388,799.72 × 152,681.54
  4. Step 4: Simplify right side
    281,739.48x = 59,362,540,001.17
  5. Step 5: Solve for x
    x = 59,362,540,001.17/281,739.48
  6. Step 6: Final answer
    x = 210,700.11

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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.