Home / 282,734.26-390,168.02-155,407.12

Finding the Fourth Proportional to 282,734.26, 390,168.02 and 155,407.12

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Solution

The fourth proportional to 282,734.26, 390,168.02 and 155,407.12 is: 214,458.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,734.26 : 390,168.02 = 155,407.12 : x
  2. Step 2: Convert to fraction form
    282,734.26/390,168.02 = 155,407.12/x
  3. Step 3: Cross multiply
    282,734.26x = 390,168.02 × 155,407.12
  4. Step 4: Simplify right side
    282,734.26x = 60,634,888,304.30
  5. Step 5: Solve for x
    x = 60,634,888,304.30/282,734.26
  6. Step 6: Final answer
    x = 214,458.94

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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.