Home / 282,643.83-390,073.32-155,344.23

Finding the Fourth Proportional to 282,643.83, 390,073.32 and 155,344.23

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Solution

The fourth proportional to 282,643.83, 390,073.32 and 155,344.23 is: 214,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,643.83 : 390,073.32 = 155,344.23 : x
  2. Step 2: Convert to fraction form
    282,643.83/390,073.32 = 155,344.23/x
  3. Step 3: Cross multiply
    282,643.83x = 390,073.32 × 155,344.23
  4. Step 4: Simplify right side
    282,643.83x = 60,595,639,538.94
  5. Step 5: Solve for x
    x = 60,595,639,538.94/282,643.83
  6. Step 6: Final answer
    x = 214,388.69

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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.