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Finding the Fourth Proportional to 176,347.58, 243,218.92 and 115,980.20

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Solution

The fourth proportional to 176,347.58, 243,218.92 and 115,980.20 is: 159,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,347.58 : 243,218.92 = 115,980.20 : x
  2. Step 2: Convert to fraction form
    176,347.58/243,218.92 = 115,980.20/x
  3. Step 3: Cross multiply
    176,347.58x = 243,218.92 × 115,980.20
  4. Step 4: Simplify right side
    176,347.58x = 28,208,578,985.38
  5. Step 5: Solve for x
    x = 28,208,578,985.38/176,347.58
  6. Step 6: Final answer
    x = 159,960.11

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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.