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Finding the Fourth Proportional to 328,412.87, 492,322.85 and 118,001.60

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Solution

The fourth proportional to 328,412.87, 492,322.85 and 118,001.60 is: 176,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,412.87 : 492,322.85 = 118,001.60 : x
  2. Step 2: Convert to fraction form
    328,412.87/492,322.85 = 118,001.60/x
  3. Step 3: Cross multiply
    328,412.87x = 492,322.85 × 118,001.60
  4. Step 4: Simplify right side
    328,412.87x = 58,094,884,657.36
  5. Step 5: Solve for x
    x = 58,094,884,657.36/328,412.87
  6. Step 6: Final answer
    x = 176,895.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.