Home / 282,690.46-390,113.04-155,366.02

Finding the Fourth Proportional to 282,690.46, 390,113.04 and 155,366.02

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Solution

The fourth proportional to 282,690.46, 390,113.04 and 155,366.02 is: 214,405.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,690.46 : 390,113.04 = 155,366.02 : x
  2. Step 2: Convert to fraction form
    282,690.46/390,113.04 = 155,366.02/x
  3. Step 3: Cross multiply
    282,690.46x = 390,113.04 × 155,366.02
  4. Step 4: Simplify right side
    282,690.46x = 60,610,310,374.90
  5. Step 5: Solve for x
    x = 60,610,310,374.90/282,690.46
  6. Step 6: Final answer
    x = 214,405.22

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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.