Home / 282,718.67-390,146.73-155,394.23

Finding the Fourth Proportional to 282,718.67, 390,146.73 and 155,394.23

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Solution

The fourth proportional to 282,718.67, 390,146.73 and 155,394.23 is: 214,441.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,718.67 : 390,146.73 = 155,394.23 : x
  2. Step 2: Convert to fraction form
    282,718.67/390,146.73 = 155,394.23/x
  3. Step 3: Cross multiply
    282,718.67x = 390,146.73 × 155,394.23
  4. Step 4: Simplify right side
    282,718.67x = 60,626,550,695.37
  5. Step 5: Solve for x
    x = 60,626,550,695.37/282,718.67
  6. Step 6: Final answer
    x = 214,441.27

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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.