Home / 229,269.25-316,420.73-128,667.25

Finding the Fourth Proportional to 229,269.25, 316,420.73 and 128,667.25

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Solution

The fourth proportional to 229,269.25, 316,420.73 and 128,667.25 is: 177,577.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,269.25 : 316,420.73 = 128,667.25 : x
  2. Step 2: Convert to fraction form
    229,269.25/316,420.73 = 128,667.25/x
  3. Step 3: Cross multiply
    229,269.25x = 316,420.73 × 128,667.25
  4. Step 4: Simplify right side
    229,269.25x = 40,712,985,172.09
  5. Step 5: Solve for x
    x = 40,712,985,172.09/229,269.25
  6. Step 6: Final answer
    x = 177,577.17

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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.