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Finding the Fourth Proportional to 253,877.71, 380,349.47 and 159,090.23

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Solution

The fourth proportional to 253,877.71, 380,349.47 and 159,090.23 is: 238,342.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,877.71 : 380,349.47 = 159,090.23 : x
  2. Step 2: Convert to fraction form
    253,877.71/380,349.47 = 159,090.23/x
  3. Step 3: Cross multiply
    253,877.71x = 380,349.47 × 159,090.23
  4. Step 4: Simplify right side
    253,877.71x = 60,509,883,871.81
  5. Step 5: Solve for x
    x = 60,509,883,871.81/253,877.71
  6. Step 6: Final answer
    x = 238,342.64

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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.