Home / 282,622.64-390,019.14-155,306.44

Finding the Fourth Proportional to 282,622.64, 390,019.14 and 155,306.44

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Solution

The fourth proportional to 282,622.64, 390,019.14 and 155,306.44 is: 214,322.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,622.64 : 390,019.14 = 155,306.44 : x
  2. Step 2: Convert to fraction form
    282,622.64/390,019.14 = 155,306.44/x
  3. Step 3: Cross multiply
    282,622.64x = 390,019.14 × 155,306.44
  4. Step 4: Simplify right side
    282,622.64x = 60,572,484,165.26
  5. Step 5: Solve for x
    x = 60,572,484,165.26/282,622.64
  6. Step 6: Final answer
    x = 214,322.83

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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.