Home / 282,860.04-390,291-158,685.18

Finding the Fourth Proportional to 282,860.04, 390,291 and 158,685.18

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Solution

The fourth proportional to 282,860.04, 390,291 and 158,685.18 is: 218,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,860.04 : 390,291 = 158,685.18 : x
  2. Step 2: Convert to fraction form
    282,860.04/390,291 = 158,685.18/x
  3. Step 3: Cross multiply
    282,860.04x = 390,291 × 158,685.18
  4. Step 4: Simplify right side
    282,860.04x = 61,933,397,587.38
  5. Step 5: Solve for x
    x = 61,933,397,587.38/282,860.04
  6. Step 6: Final answer
    x = 218,954.21

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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.