Home / 310,174.08-428,038.74-174,208.02

Finding the Fourth Proportional to 310,174.08, 428,038.74 and 174,208.02

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Solution

The fourth proportional to 310,174.08, 428,038.74 and 174,208.02 is: 240,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,174.08 : 428,038.74 = 174,208.02 : x
  2. Step 2: Convert to fraction form
    310,174.08/428,038.74 = 174,208.02/x
  3. Step 3: Cross multiply
    310,174.08x = 428,038.74 × 174,208.02
  4. Step 4: Simplify right side
    310,174.08x = 74,567,781,378.69
  5. Step 5: Solve for x
    x = 74,567,781,378.69/310,174.08
  6. Step 6: Final answer
    x = 240,406.23

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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.