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Finding the Fourth Proportional to 229,015.88, 316,030.80 and 127,045.40

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Solution

The fourth proportional to 229,015.88, 316,030.80 and 127,045.40 is: 175,316.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,015.88 : 316,030.80 = 127,045.40 : x
  2. Step 2: Convert to fraction form
    229,015.88/316,030.80 = 127,045.40/x
  3. Step 3: Cross multiply
    229,015.88x = 316,030.80 × 127,045.40
  4. Step 4: Simplify right side
    229,015.88x = 40,150,259,398.32
  5. Step 5: Solve for x
    x = 40,150,259,398.32/229,015.88
  6. Step 6: Final answer
    x = 175,316.49

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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.