Home / 282,586.36-389,968.86-155,261.64

Finding the Fourth Proportional to 282,586.36, 389,968.86 and 155,261.64

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Solution

The fourth proportional to 282,586.36, 389,968.86 and 155,261.64 is: 214,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,586.36 : 389,968.86 = 155,261.64 : x
  2. Step 2: Convert to fraction form
    282,586.36/389,968.86 = 155,261.64/x
  3. Step 3: Cross multiply
    282,586.36x = 389,968.86 × 155,261.64
  4. Step 4: Simplify right side
    282,586.36x = 60,547,204,752.53
  5. Step 5: Solve for x
    x = 60,547,204,752.53/282,586.36
  6. Step 6: Final answer
    x = 214,260.89

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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.