Home / 282,758.64-390,207.34-155,435.01

Finding the Fourth Proportional to 282,758.64, 390,207.34 and 155,435.01

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Solution

The fourth proportional to 282,758.64, 390,207.34 and 155,435.01 is: 214,500.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,758.64 : 390,207.34 = 155,435.01 : x
  2. Step 2: Convert to fraction form
    282,758.64/390,207.34 = 155,435.01/x
  3. Step 3: Cross multiply
    282,758.64x = 390,207.34 × 155,435.01
  4. Step 4: Simplify right side
    282,758.64x = 60,651,881,794.97
  5. Step 5: Solve for x
    x = 60,651,881,794.97/282,758.64
  6. Step 6: Final answer
    x = 214,500.54

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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.