Home / 282,644.24-390,048.87-155,319.83

Finding the Fourth Proportional to 282,644.24, 390,048.87 and 155,319.83

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Solution

The fourth proportional to 282,644.24, 390,048.87 and 155,319.83 is: 214,341.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,644.24 : 390,048.87 = 155,319.83 : x
  2. Step 2: Convert to fraction form
    282,644.24/390,048.87 = 155,319.83/x
  3. Step 3: Cross multiply
    282,644.24x = 390,048.87 × 155,319.83
  4. Step 4: Simplify right side
    282,644.24x = 60,582,323,401.31
  5. Step 5: Solve for x
    x = 60,582,323,401.31/282,644.24
  6. Step 6: Final answer
    x = 214,341.27

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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.