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Finding the Fourth Proportional to 310,904.80, 429,048.60 and 176,768.80

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Solution

The fourth proportional to 310,904.80, 429,048.60 and 176,768.80 is: 243,940.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,904.80 : 429,048.60 = 176,768.80 : x
  2. Step 2: Convert to fraction form
    310,904.80/429,048.60 = 176,768.80/x
  3. Step 3: Cross multiply
    310,904.80x = 429,048.60 × 176,768.80
  4. Step 4: Simplify right side
    310,904.80x = 75,842,406,163.68
  5. Step 5: Solve for x
    x = 75,842,406,163.68/310,904.80
  6. Step 6: Final answer
    x = 243,940.93

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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.