Home / 282,547.26-389,899.04-155,220.12

Finding the Fourth Proportional to 282,547.26, 389,899.04 and 155,220.12

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Solution

The fourth proportional to 282,547.26, 389,899.04 and 155,220.12 is: 214,194.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,547.26 : 389,899.04 = 155,220.12 : x
  2. Step 2: Convert to fraction form
    282,547.26/389,899.04 = 155,220.12/x
  3. Step 3: Cross multiply
    282,547.26x = 389,899.04 × 155,220.12
  4. Step 4: Simplify right side
    282,547.26x = 60,520,175,000.58
  5. Step 5: Solve for x
    x = 60,520,175,000.58/282,547.26
  6. Step 6: Final answer
    x = 214,194.87

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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.