Home / 282,554.40-389,928-153,494.16

Finding the Fourth Proportional to 282,554.40, 389,928 and 153,494.16

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Solution

The fourth proportional to 282,554.40, 389,928 and 153,494.16 is: 211,823.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,554.40 : 389,928 = 153,494.16 : x
  2. Step 2: Convert to fraction form
    282,554.40/389,928 = 153,494.16/x
  3. Step 3: Cross multiply
    282,554.40x = 389,928 × 153,494.16
  4. Step 4: Simplify right side
    282,554.40x = 59,851,670,820.48
  5. Step 5: Solve for x
    x = 59,851,670,820.48/282,554.40
  6. Step 6: Final answer
    x = 211,823.53

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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.