Home / 282,626.32-390,019.95-155,299.18

Finding the Fourth Proportional to 282,626.32, 390,019.95 and 155,299.18

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Solution

The fourth proportional to 282,626.32, 390,019.95 and 155,299.18 is: 214,310.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,626.32 : 390,019.95 = 155,299.18 : x
  2. Step 2: Convert to fraction form
    282,626.32/390,019.95 = 155,299.18/x
  3. Step 3: Cross multiply
    282,626.32x = 390,019.95 × 155,299.18
  4. Step 4: Simplify right side
    282,626.32x = 60,569,778,418.64
  5. Step 5: Solve for x
    x = 60,569,778,418.64/282,626.32
  6. Step 6: Final answer
    x = 214,310.47

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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.