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Finding the Fourth Proportional to 328,886.96, 453,485.66 and 242,970.26

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Solution

The fourth proportional to 328,886.96, 453,485.66 and 242,970.26 is: 335,019.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,886.96 : 453,485.66 = 242,970.26 : x
  2. Step 2: Convert to fraction form
    328,886.96/453,485.66 = 242,970.26/x
  3. Step 3: Cross multiply
    328,886.96x = 453,485.66 × 242,970.26
  4. Step 4: Simplify right side
    328,886.96x = 110,183,528,716.47
  5. Step 5: Solve for x
    x = 110,183,528,716.47/328,886.96
  6. Step 6: Final answer
    x = 335,019.45

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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.