Home / 281,040.48-387,833.04-153,718.56

Finding the Fourth Proportional to 281,040.48, 387,833.04 and 153,718.56

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Solution

The fourth proportional to 281,040.48, 387,833.04 and 153,718.56 is: 212,130.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,040.48 : 387,833.04 = 153,718.56 : x
  2. Step 2: Convert to fraction form
    281,040.48/387,833.04 = 153,718.56/x
  3. Step 3: Cross multiply
    281,040.48x = 387,833.04 × 153,718.56
  4. Step 4: Simplify right side
    281,040.48x = 59,617,136,429.22
  5. Step 5: Solve for x
    x = 59,617,136,429.22/281,040.48
  6. Step 6: Final answer
    x = 212,130.07

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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.