Home / 282,861.14-390,355.07-155,536.63

Finding the Fourth Proportional to 282,861.14, 390,355.07 and 155,536.63

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Solution

The fourth proportional to 282,861.14, 390,355.07 and 155,536.63 is: 214,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,861.14 : 390,355.07 = 155,536.63 : x
  2. Step 2: Convert to fraction form
    282,861.14/390,355.07 = 155,536.63/x
  3. Step 3: Cross multiply
    282,861.14x = 390,355.07 × 155,536.63
  4. Step 4: Simplify right side
    282,861.14x = 60,714,510,337.64
  5. Step 5: Solve for x
    x = 60,714,510,337.64/282,861.14
  6. Step 6: Final answer
    x = 214,644.23

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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.