Home / 282,635.24-390,032.21-155,308.10

Finding the Fourth Proportional to 282,635.24, 390,032.21 and 155,308.10

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Solution

The fourth proportional to 282,635.24, 390,032.21 and 155,308.10 is: 214,322.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,635.24 : 390,032.21 = 155,308.10 : x
  2. Step 2: Convert to fraction form
    282,635.24/390,032.21 = 155,308.10/x
  3. Step 3: Cross multiply
    282,635.24x = 390,032.21 × 155,308.10
  4. Step 4: Simplify right side
    282,635.24x = 60,575,159,912.01
  5. Step 5: Solve for x
    x = 60,575,159,912.01/282,635.24
  6. Step 6: Final answer
    x = 214,322.75

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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.