Home / 282,718.17-390,146.04-155,393.73

Finding the Fourth Proportional to 282,718.17, 390,146.04 and 155,393.73

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Solution

The fourth proportional to 282,718.17, 390,146.04 and 155,393.73 is: 214,440.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,718.17 : 390,146.04 = 155,393.73 : x
  2. Step 2: Convert to fraction form
    282,718.17/390,146.04 = 155,393.73/x
  3. Step 3: Cross multiply
    282,718.17x = 390,146.04 × 155,393.73
  4. Step 4: Simplify right side
    282,718.17x = 60,626,248,400.33
  5. Step 5: Solve for x
    x = 60,626,248,400.33/282,718.17
  6. Step 6: Final answer
    x = 214,440.58

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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.