Home / 319,903.16-480,150-162,242.36

Finding the Fourth Proportional to 319,903.16, 480,150 and 162,242.36

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Solution

The fourth proportional to 319,903.16, 480,150 and 162,242.36 is: 243,513.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,903.16 : 480,150 = 162,242.36 : x
  2. Step 2: Convert to fraction form
    319,903.16/480,150 = 162,242.36/x
  3. Step 3: Cross multiply
    319,903.16x = 480,150 × 162,242.36
  4. Step 4: Simplify right side
    319,903.16x = 77,900,669,154
  5. Step 5: Solve for x
    x = 77,900,669,154/319,903.16
  6. Step 6: Final answer
    x = 243,513.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.