Home / 282,763.62-390,219.12-155,439.18

Finding the Fourth Proportional to 282,763.62, 390,219.12 and 155,439.18

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Solution

The fourth proportional to 282,763.62, 390,219.12 and 155,439.18 is: 214,509.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,763.62 : 390,219.12 = 155,439.18 : x
  2. Step 2: Convert to fraction form
    282,763.62/390,219.12 = 155,439.18/x
  3. Step 3: Cross multiply
    282,763.62x = 390,219.12 × 155,439.18
  4. Step 4: Simplify right side
    282,763.62x = 60,655,340,033.12
  5. Step 5: Solve for x
    x = 60,655,340,033.12/282,763.62
  6. Step 6: Final answer
    x = 214,509.00

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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.