Home / 282,829.02-390,314.07-155,514.30

Finding the Fourth Proportional to 282,829.02, 390,314.07 and 155,514.30

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Solution

The fourth proportional to 282,829.02, 390,314.07 and 155,514.30 is: 214,615.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,829.02 : 390,314.07 = 155,514.30 : x
  2. Step 2: Convert to fraction form
    282,829.02/390,314.07 = 155,514.30/x
  3. Step 3: Cross multiply
    282,829.02x = 390,314.07 × 155,514.30
  4. Step 4: Simplify right side
    282,829.02x = 60,699,419,376.20
  5. Step 5: Solve for x
    x = 60,699,419,376.20/282,829.02
  6. Step 6: Final answer
    x = 214,615.24

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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.