Home / 282,620.22-390,017.19-155,298.30

Finding the Fourth Proportional to 282,620.22, 390,017.19 and 155,298.30

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Solution

The fourth proportional to 282,620.22, 390,017.19 and 155,298.30 is: 214,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,620.22 : 390,017.19 = 155,298.30 : x
  2. Step 2: Convert to fraction form
    282,620.22/390,017.19 = 155,298.30/x
  3. Step 3: Cross multiply
    282,620.22x = 390,017.19 × 155,298.30
  4. Step 4: Simplify right side
    282,620.22x = 60,569,006,577.78
  5. Step 5: Solve for x
    x = 60,569,006,577.78/282,620.22
  6. Step 6: Final answer
    x = 214,312.36

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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.