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Finding the Fourth Proportional to 307,646.64, 424,744.56 and 235,888.74

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Solution

The fourth proportional to 307,646.64, 424,744.56 and 235,888.74 is: 325,673.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,646.64 : 424,744.56 = 235,888.74 : x
  2. Step 2: Convert to fraction form
    307,646.64/424,744.56 = 235,888.74/x
  3. Step 3: Cross multiply
    307,646.64x = 424,744.56 × 235,888.74
  4. Step 4: Simplify right side
    307,646.64x = 100,192,459,080.25
  5. Step 5: Solve for x
    x = 100,192,459,080.25/307,646.64
  6. Step 6: Final answer
    x = 325,673.83

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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.