Home / 282,900.60-390,395.04-155,576.19

Finding the Fourth Proportional to 282,900.60, 390,395.04 and 155,576.19

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Solution

The fourth proportional to 282,900.60, 390,395.04 and 155,576.19 is: 214,690.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,900.60 : 390,395.04 = 155,576.19 : x
  2. Step 2: Convert to fraction form
    282,900.60/390,395.04 = 155,576.19/x
  3. Step 3: Cross multiply
    282,900.60x = 390,395.04 × 155,576.19
  4. Step 4: Simplify right side
    282,900.60x = 60,736,172,334.69
  5. Step 5: Solve for x
    x = 60,736,172,334.69/282,900.60
  6. Step 6: Final answer
    x = 214,690.86

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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.