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Finding the Fourth Proportional to 319,301.52, 440,700 and 183,428.66

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Solution

The fourth proportional to 319,301.52, 440,700 and 183,428.66 is: 253,168.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,301.52 : 440,700 = 183,428.66 : x
  2. Step 2: Convert to fraction form
    319,301.52/440,700 = 183,428.66/x
  3. Step 3: Cross multiply
    319,301.52x = 440,700 × 183,428.66
  4. Step 4: Simplify right side
    319,301.52x = 80,837,010,462
  5. Step 5: Solve for x
    x = 80,837,010,462/319,301.52
  6. Step 6: Final answer
    x = 253,168.26

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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.