Home / 282,575.16-389,934.06-155,256.12

Finding the Fourth Proportional to 282,575.16, 389,934.06 and 155,256.12

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Solution

The fourth proportional to 282,575.16, 389,934.06 and 155,256.12 is: 214,242.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,575.16 : 389,934.06 = 155,256.12 : x
  2. Step 2: Convert to fraction form
    282,575.16/389,934.06 = 155,256.12/x
  3. Step 3: Cross multiply
    282,575.16x = 389,934.06 × 155,256.12
  4. Step 4: Simplify right side
    282,575.16x = 60,539,649,211.45
  5. Step 5: Solve for x
    x = 60,539,649,211.45/282,575.16
  6. Step 6: Final answer
    x = 214,242.64

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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.